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    <us-gaap:NatureOfOperations contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;VistaGen Therapeutics.&#13;Inc., a Nevada corporation (which may be referred to as &lt;i&gt;VistaGen&lt;/i&gt;, the &lt;i&gt;Company&lt;/i&gt;, &lt;i&gt;we&lt;/i&gt;, &lt;i&gt;our&lt;/i&gt;, or &lt;i&gt;us&lt;/i&gt;),&#13;is a clinical-stage biopharmaceutical company committed to developing new generation medications for central nervous system (&lt;i&gt;CNS&lt;/i&gt;)&#13;diseases and disorders with high unmet need. Our pipeline includes three clinical-stage CNS drug candidates, each with a differentiated&#13;mechanism of action, an exceptional safety profile in all clinical studies to date, and therapeutic potential in multiple CNS&#13;markets. We aim to become a fully-integrated biopharmaceutical company that develops and commercializes innovative CNS therapies&#13;for large and growing mental health and neurology markets where current treatments are inadequate to meet the needs of millions&#13;of patients and caregivers worldwide.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&lt;i&gt;PH94B Neuroactive&#13;Nasal Spray for Anxiety-related Disorders&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;PH94B neuroactive&#13;nasal spray is an odorless, first-in-class, fast-acting synthetic neurosteroid with therapeutic potential in a wide range of neuropsychiatric&#13;indications involving anxiety or phobia. Conveniently self-administered in microgram doses without systemic exposure, we are initially&#13;developing PH94B as a potential fast-acting, non-sedating, non-addictive new generation treatment of social anxiety disorder (&lt;i&gt;SAD&lt;/i&gt;).&#13;SAD affects over 20 million Americans and, according to the National Institutes of Health (&lt;i&gt;NIH&lt;/i&gt;), is the third most common&#13;psychiatric condition after depression and substance abuse. A person with SAD feels symptoms of anxiety or fear in certain social&#13;situations, such as meeting new people, dating, being on a job interview, answering a question in class, or having to talk to&#13;a cashier in a store. Doing everyday things in front of people - such as eating or drinking in front of others or using a public&#13;restroom - also causes anxiety or fear. A person with SAD is afraid that he or she will be humiliated, judged, and rejected.&amp;#160;&#13;The fear that people with SAD have in social situations is so strong that they feel it is beyond their ability to control. As&#13;a result, it gets in the way of going to work, attending school, or doing everyday things in situations with potential for interpersonal&#13;interaction. People with SAD may worry about these and other things for weeks before they happen. Sometimes, they end up staying&#13;away from places or events where they think they might have to do something that will embarrass them.&amp;#160; Some people with SAD&#13;do not have anxiety in social situations, but instead have performance anxiety. They feel physical symptoms of anxiety in performance&#13;situations, such as giving a lecture, a speech or a presentation at school or work, as well as playing a sports game, or dancing&#13;or playing a musical instrument on stage.&amp;#160; Without treatment, SAD can last for many years or a lifetime and prevent a person&#13;from reaching his or her full potential.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Only three drugs,&#13;all oral antidepressants (&lt;i&gt;ADs&lt;/i&gt;), are approved by the U.S Food and Drug Administration (&lt;i&gt;FDA&lt;/i&gt;) specifically for treatment&#13;of SAD. These FDA-approved chronic ADs have slow onset of effect (often many weeks to months) and significant side effects that&#13;may make them inadequate or inappropriate treatment alternatives for many individuals affected by SAD episodically. VistaGen&amp;#8217;s&#13;PH94B is fundamentally differentiated from all current anxiolytics, including all ADs approved by the FDA for treatment of SAD.&#13;Intranasal self-administration of only approximately 3.2 micrograms of PH94B binds to nasal chemosensory receptors that, in turn,&#13;activate key neural circuits in the brain that lead to rapid suppression of fear and anxiety. In Phase 2 and pilot Phase 3 clinical&#13;studies to date, PH94B has not shown psychological side effects (such as dissociation or hallucinations), systemic exposure, sedation&#13;or other side effects and safety concerns that may be caused by the current ADs approved by the FDA for treatment of SAD, as well&#13;as with the benzodiazepines and beta blockers, which are not approved by the FDA to treat SAD but may be prescribed by psychiatrists&#13;and physicians for treatment of SAD on an off-label basis.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In a peer-reviewed,&#13;published double-blind, placebo-controlled Phase 2 clinical trial, PH94B neuroactive nasal spray was significantly more effective&#13;than placebo in reducing both public-speaking (performance) anxiety (p=0.002) and social interaction anxiety (p=0.009) in laboratory&#13;challenges of individuals with SAD within 10 to 15 minutes of self-administration of a non-systemic 1.6 microgram dose of PH94B.&amp;#160;&#13;Based on its novel mechanism of pharmacological action, rapid-onset of therapeutic effects and exceptional safety and tolerability&#13;profile in Phase 2 and pilot Phase 3 clinical trials to date, we are preparing to begin Phase 3 development of PH94B. Our goal&#13;is to develop and commercialize PH94B as the first FDA-approved, fast-acting, on-demand, at-home treatment for SAD. Additional&#13;potential anxiety-related neuropsychiatric indications for PH94B include general anxiety disorder, peripartum anxiety (pre- and&#13;post-partum anxiety), pre/post-operative anxiety, panic disorder, post-traumatic stress disorder and specific social phobias.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&lt;i&gt;PH10 Neuroactive&#13;Nasal Spray for Depression and Suicidal Ideation&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;PH10 neuroactive&#13;nasal spray is an odorless, first-in-class, fast-acting synthetic neurosteroid with therapeutic potential in a wide range of neuropsychiatric&#13;indications involving depression and suicidal ideation. Conveniently self-administered in microgram doses without systemic exposure,&#13;we are initially developing PH94B as a potential fast-acting, non-sedating, non-addictive new generation treatment of major depressive&#13;disorder (&lt;i&gt;MDD&lt;/i&gt;).&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Depression is&#13;a serious medical illness and a global public health concern that can occur at any time over a person's life. While most people&#13;will experience depressed mood at some point during their lifetime, MDD is different. MDD is the chronic, pervasive feeling of&#13;utter unhappiness and suffering, which impairs daily functioning. Symptoms of MDD include diminished pleasure or loss of interest&#13;in activities, changes in appetite that result in weight changes, insomnia or oversleeping, psychomotor agitation, loss of energy&#13;or increased fatigue, feelings of worthlessness or inappropriate guilt, difficulty thinking, concentrating or making decisions,&#13;and thoughts of death or suicide and attempts at suicide. Current FDA-approved medications available in the multi-billion-dollar&#13;global AD market often fall far short of satisfying the unmet medical needs of millions suffering from the debilitating effects&#13;of depression.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;While current&#13;FDA-approved ADs are widely used, about two-thirds of patients with MDD do not respond to their initial AD treatment. Inadequate&#13;response to current ADs is among the key reasons MDD is one of the leading public health concerns in the United States, creating&#13;a significant unmet medical need for new agents with fundamentally different mechanisms of action and side effect and safety profiles.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;PH10 is a new&#13;generation antidepressant with a mechanism of action that is fundamentally different from all current ADs. After self-administration,&#13;a non-systemic microgram-level dose of PH10 binds to nasal chemosensory receptors that, in turn, activate key neural circuits&#13;in the brain that can lead to rapid-onset antidepressant effects, but without the psychological side effects (such as dissociation&#13;and hallucinations), systemic exposure or safety concerns that maybe be caused by ketamine-based therapy (&lt;i&gt;KBT&lt;/i&gt;), including&#13;intravenous ketamine or esketamine nasal spray. In an exploratory 30-patient Phase 2a clinical trial, PH10, self-administered&#13;at a dose of 6.4 micrograms, was well-tolerated and demonstrated significant (p=0.022) rapid-onset antidepressant effects, which&#13;were sustained over an 8-week period, as measured by the Hamilton Depression Rating Scale (HAM-D), without side&#13;effects or safety concerns that may be caused by KBT. Based on positive results from this exploratory Phase 2a study, we are preparing&#13;for Phase 2b clinical development of PH10 in MDD. With its exceptional safety profile during clinical development to date, we&#13;believe PH10, as a convenient at-home therapy, has potential for multiple applications in global depression markets, including&#13;as a stand-alone front-line therapy for MDD, as an add-on therapy to augment current FDA-approved ADs for patients with MDD who&#13;have an inadequate response to standard ADs, and to prevent relapse following successful treatment with KBT.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&lt;i&gt;AV-101,&#13;an Oral NMDAR Antagonist&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;AV-101 (4-Cl-KYN)&#13;belongs to a new generation of investigational medicines in neuropsychiatry and neurology known as NMDAR (N-methyl-D-aspartate&#13;receptor) modulators. The NMDAR is a pivotal ion channel in the brain that is involved with transmitting signals between neurons,&#13;and abnormal NMDAR function is associated with numerous CNS diseases and disorders. AV-101 is an oral prodrug of 7-chloro-kynurenic&#13;acid (7-Cl-KYNA), a potent and selective full antagonist of the NMDAR by blocking the glycine site. To date AV-101 has exhibited&#13;no dissociative or hallucinogenic psychological side effects or safety concerns similar to those that may be caused by amantadine&#13;and ketamine therapy. With this lack of side effects and exceptional safety profile, AV-101 has potential to be a new oral, at-home,&#13;non-sedating treatment for multiple large-market NMDAR-focused CNS indications where current treatments are inadequate to meet&#13;high unmet patient needs. The FDA has granted Fast Track designation for development of AV-101 as both a potential adjunctive&#13;treatment for MDD and as a non-opioid treatment for neuropathic pain.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We recently completed&#13;a double-blind, placebo-controlled, multi-center Phase 2 clinical trial of AV-101 as a potential adjunctive treatment, together&#13;with a standard FDA-approved oral AD (either a selective serotonin reuptake inhibitor (&lt;i&gt;SSRI&lt;/i&gt;) or a serotonin norepinephrine&#13;reuptake inhibitor (&lt;i&gt;SNRI&lt;/i&gt;)), in MDD patients who had an inadequate response to a stable dose of a standard AD (the &lt;i&gt;Elevate&#13;Study&lt;/i&gt;). Topline results of the Elevate Study (n=199) indicated that the AV-101 treatment arm (1440 mg) did not differentiate&#13;from placebo on the primary endpoint (change in the Montgomery-&amp;#197;sberg Depression Rating Scale (MADRS-10) total score compared&#13;to baseline), potentially due to sub-therapeutic levels of 7-Cl-KYNA in the brain. As in prior clinical studies, AV-101 was well&#13;tolerated, with no psychotomimetic side effects or drug-related serious adverse events.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Results from recent successful AV-101&#13;preclinical studies suggest that there is a substantially increased brain concentration of AV-101 and its active metabolite,&#13;7-chlorokynurenic acid (7CL-KYNA), when given together with probenecid. These surprising effects were first revealed in those&#13;studies, although they are consistent with well-documented clinical studies of probenecid increasing the therapeutic levels&#13;of some unrelated classes of approved drugs. Probenecid otherwise is a safe and well-known organic anion transport&#13;inhibitor used, for example, to increase the therapeutic benefit of antibiotics. When probenecid was given adjunctively with&#13;AV-101 in an animal model, markedly increased brain concentrations of AV-101 (approximately 7-fold) and of 7-Cl-KYNA&#13;(approximately 35-fold) were discovered. The substantial increase in brain concentration of 7-Cl-KYNA in this animal model&#13;might have been due, in large part, to probenecid&amp;#8217;s ability to block the efflux of 7-Cl-KYNA from the brain. This&#13;efflux-blocking effect, with a resulting increase in brain levels and duration of AV-101&amp;#8217;s active metabolite,&#13;potentially could have important therapeutic implications for human patients with MDD and potentially other NMDAR-focused CNS&#13;diseases and disorders. Some of the findings from these AV-101 preclinical studies with adjunctive probenecid were presented&#13;at the British Pharmacological Society&amp;#8217;s Pharmacology 2019 annual conference in Edinburgh, UK in December 2019.&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In addition, a&#13;Phase 1b target engagement study completed after the Elevate Study by the Baylor College of Medicine (&lt;i&gt;Baylor&lt;/i&gt;) with financial&#13;support from the U.S. Department of Veterans Affairs (&lt;i&gt;VA&lt;/i&gt;), involved 10 healthy volunteer U.S. military Veterans who received&#13;single doses of AV-101 (720 mg or 1440 mg) or placebo, in a double-blind, randomized, cross-over controlled trial. The primary&#13;goal of the study was to identify and define a dose-response relationship between AV-101 and multiple electrophysiological (&lt;i&gt;EEG&lt;/i&gt;)&#13;biomarkers related to NMDAR function, as well as blood biomarkers associated with suicidality (the &lt;i&gt;Baylor Study&lt;/i&gt;). The findings&#13;from the Baylor Study suggest that, in healthy Veterans, the higher dose of AV-101 (1440 mg) was associated with dose-related&#13;increase in the 40 Hz Auditory Steady State Response (&lt;i&gt;ASSR&lt;/i&gt;), a robust measure of the integrity of inhibitory interneuron&#13;synchronization that is associated with NMDAR inhibition. Findings from the successful Baylor Study were presented at the 58th&#13;Annual Meeting of the American College of Neuropsychopharmacology (&lt;i&gt;ACNP&lt;/i&gt;) in Orlando, Florida in December 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The successful&#13;Baylor Study and preclinical studies involving adjunctive probenecid suggest that it may be possible to increase therapeutic concentrations&#13;and duration of 7-Cl-KYNA in the brain, and thus increase NMDAR antagonism in MDD patients with an inadequate response to standard&#13;ADs when AV-101 and probenecid are combined. During 2020, we plan to conduct additional AV-101 preclinical studies with adjunctive&#13;probenecid to evaluate its potential applicability to other NMDAR-focused CNS indications for which we have existing data with&#13;AV-101 as a monotherapy (epilepsy, levodopa-induced dyskinesia, neuropathic pain and suicidal ideation), to determine the most&#13;appropriate path forward for potential clinical development of AV-101 in MDD and possibly other indications.&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;VistaStem Therapeutics&#13;&amp;#8211; Stem Cell Technology for Drug Rescue and Regenerative Medicine&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In addition to&#13;our current CNS drug candidates, we have stem cell technology-based, pipeline-enabling programs through our wholly-owned subsidiary,&#13;VistaStem Therapeutics (&lt;i&gt;VistaStem&lt;/i&gt;). VistaStem is focused on applying pluripotent stem cell (&lt;i&gt;hPSC&lt;/i&gt;) technology to&#13;discover and develop, by utilizing&amp;#160;&lt;i&gt;CardioSafe 3D&lt;/i&gt;, our customized cardiac bioassay system, small molecule New Chemical&#13;Entities (&lt;i&gt;NCEs&lt;/i&gt;) for our CNS pipeline or for out-licensing.&amp;#160;VistaStem&amp;#8217;s stem cell technology involving hPSC-derived&#13;blood, cartilage, heart and liver cells has multiple potential applications. To advance potential regenerative medicine (&lt;i&gt;RM&lt;/i&gt;)&#13;applications of VistaStem&amp;#8217;s cardiac stem cell technology, we licensed to BlueRock Therapeutics LP, a next generation cell&#13;therapy and RM company which was acquired by Bayer AG in 2019, rights to certain proprietary technologies relating to the production&#13;of cardiac stem cells for the treatment of heart disease (the&amp;#160;&lt;i&gt;BlueRock/Bayer Agreement&lt;/i&gt;).&amp;#160;In a manner similar&#13;to the BlueRock/Bayer Agreement, we may pursue additional collaborations or licensing transactions involving VistaStem&amp;#8217;s&#13;blood, cartilage, and/or liver cells derived from hPSCs for cell-based therapy, cell repair therapy, RM and/or tissue engineering.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Subsidiaries&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;As noted above,&#13;VistaStem, a California corporation, is our wholly-owned subsidiary. Our Condensed Consolidated Financial Statements in this Quarterly&#13;Report on Form 10-Q (&lt;i&gt;Report&lt;/i&gt;) also include the accounts of VistaStem and VistaStem&amp;#8217;s two wholly-owned inactive subsidiaries,&#13;Artemis Neuroscience, Inc., a Maryland corporation, and VistaStem Canada, Inc., a corporation organized under the laws of Ontario,&#13;Canada.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:NatureOfOperations>
    <us-gaap:BasisOfAccounting contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The accompanying unaudited Condensed Consolidated&#13;Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States (&lt;i&gt;U.S.&#13;GAAP&lt;/i&gt;) for interim financial information and with the instructions to Form 10-Q and Rule&amp;#160;8-03 of Regulation S-X. Accordingly,&#13;they do not contain all of the information and footnotes required for complete consolidated financial statements. In the opinion&#13;of management, the accompanying unaudited Condensed Consolidated Financial Statements reflect all adjustments, which include only&#13;normal recurring adjustments, necessary to present fairly our interim financial information. The accompanying Condensed Consolidated&#13;Balance Sheet at March 31, 2019 has been derived from our audited consolidated financial statements at that date but does not include&#13;all disclosures required by U.S. GAAP.&amp;#160; The operating results for the three and nine months ended December 31, 2019 are not&#13;necessarily indicative of the operating results to be expected for our fiscal year ending March 31, 2020, or for any other future&#13;interim or other period.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The accompanying unaudited Condensed Consolidated&#13;Financial Statements and notes to the Condensed Consolidated Financial Statements contained in this Report should be read in conjunction&#13;with our audited Consolidated Financial Statements for our fiscal year ended March 31, 2019 contained in our Annual Report on Form&#13;10-K, as filed with the Securities and Exchange Commission (&lt;i&gt;SEC&lt;/i&gt;) on June 25, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The accompanying unaudited Condensed Consolidated&#13;Financial Statements have been prepared assuming we will continue as a going concern. As a clinical-stage biopharmaceutical company&#13;having not yet developed commercial products or achieved sustainable revenues, we have experienced recurring losses and negative&#13;cash flows from operations resulting in a deficit of approximately $198.6 million accumulated from inception (May 1998) through&#13;December 31, 2019. We expect losses and negative cash flows from operations to continue for the foreseeable future as we engage&#13;in further development of PH94B, PH10 and AV-101, execute our drug rescue programs and pursue potential drug development and regenerative&#13;medicine opportunities.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Since our inception in May 1998 through December&#13;31, 2019, we have financed our operations and technology acquisitions primarily through the issuance and sale of our equity and&#13;debt securities for cash proceeds of approximately $80.4 million, as well as from an aggregate of approximately $17.7 million of&#13;government research grant awards (excluding the fair market value of government sponsored and funded clinical trials), strategic&#13;collaboration payments, intellectual property licensing and other revenues. Additionally, we have issued equity securities with&#13;an approximate value at issuance of $38.1 million in noncash acquisitions of product licenses and in settlements of certain liabilities,&#13;including liabilities for professional services rendered to us or as compensation for such services.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;At December 31, 2019, we had cash and cash equivalents&#13;of approximately $1.1 million. As disclosed in Note 11, &lt;i&gt;Subsequent Events&lt;/i&gt;, since December 31, 2019, we have received net&#13;cash proceeds of approximately $2.68 million from a registered direct public offering of our common stock and a concurrent private&#13;placement of warrants to purchase unregistered shares of our common stock (the &lt;i&gt;January 2020 Offering&lt;/i&gt;). Nevertheless, in&#13;the absence of additional financing from the sale of our securities, government research grant awards, strategic collaboration&#13;payments, intellectual property licensing or other sources, we believe that our cash position at December 31, 2019, together with&#13;the proceeds from the January 2020 Offering, will not be sufficient to fund our planned operations for the twelve months following&#13;the issuance of these financial statements and raises substantial doubt that we can continue as a going concern. During the next&#13;twelve months, subject to securing appropriate and adequate financing, we plan to prepare for and launch a Phase 3 clinical trial&#13;of PH94B for SAD, prepare for a Phase 2b clinical study and certain nonclinical studies involving PH10, PH94B and AV-101 and prepare&#13;for and potentially launch a Phase 2b clinical trial of PH10 for MDD. When necessary and advantageous, we plan to raise additional&#13;capital, through the sale of our equity securities in one or more (i) private placements to accredited investors, (i) public offerings&#13;and/or (ii) in strategic licensing and development collaborations involving one or more of our drug candidates in markets outside&#13;the United States. Subject to certain restrictions, our Registration Statement on Form S-3 (Registration No. 333-234025) (the &lt;i&gt;S-3&#13;Registration Statement&lt;/i&gt;), which became effective on October 7, 2019, is available for future sales of our equity securities&#13;in one or more public offerings from time to time. While we may make additional sales of our equity securities under the S-3 Registration&#13;Statement, we do not have an obligation to do so.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;As we have been in the past, we expect that,&#13;when and as necessary, we will be successful in raising additional capital from the sale of our equity securities either in one&#13;or more public offerings or in one or more private placement transactions with individual accredited investors and institutions.&#13;In addition to the potential sale of our equity securities, we may also seek to enter research, development and/or commercialization&#13;collaborations that could generate revenue or provide funding, including non-dilutive funding, for development of one or more of&#13;our CNS product candidates. We may also seek additional government grant awards or agreements similar to our relationships with&#13;Baylor and the VA in connection with the Baylor Study. Such strategic collaborations may provide non-dilutive resources to advance&#13;our strategic initiatives while reducing a portion of our future cash outlays and working capital requirements. We may also pursue&#13;intellectual property arrangements similar to the BlueRock/Bayer Agreement with other parties. Although we may seek additional&#13;collaborations that could generate revenue and/or provide non-dilutive funding for development of our product candidates, as well&#13;as new government grant awards and/or agreements, no assurance can be provided that any such collaborations, awards or agreements&#13;will occur in the future. &amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Our future working capital requirements will&#13;depend on many factors, including, without limitation, the scope and nature of opportunities related to our success and the success&#13;of certain other companies in clinical trials, including our development and commercialization of our current product candidates&#13;and various applications of our stem cell technology platform, the availability of, and our ability to obtain, government grant&#13;awards and agreements, and our ability to enter into collaborations on terms acceptable to us. To further advance the clinical&#13;development of PH94B, PH10, and AV-101 and, to a lesser extent, our stem cell technology platform, as well as support our operating&#13;activities, we plan to continue to carefully manage our routine operating costs, including our employee headcount and related expenses,&#13;as well as costs relating to regulatory consulting, contract research and development, investor relations and corporate development,&#13;legal, acquisition and protection of intellectual property, public company compliance and other professional services and operating&#13;costs.&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Notwithstanding the foregoing, there can be&#13;no assurance that future financings or government or other strategic collaborations will be available to us in sufficient amounts,&#13;in a timely manner, or on terms acceptable to us, if at all. If we are unable to obtain substantial additional financing on a timely&#13;basis when needed in 2020 and beyond, our business, financial condition, and results of operations may be harmed, the price of&#13;our stock may decline, we may be required to reduce, defer, or discontinue certain of our research and development activities and&#13;we may not be able to continue as a going concern.&amp;#160;&amp;#160;As noted above, these Condensed Consolidated Financial Statements&#13;do not include any adjustments that might result from the negative outcome of this uncertainty.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;</us-gaap:BasisOfAccounting>
    <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Use of Estimates&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The preparation of financial statements in conformity&#13;with U.S.&amp;#160;GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities,&#13;the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues&#13;and expenses during the reporting period. Actual results could differ from those estimates.&amp;#160;&amp;#160;Significant estimates include&#13;those relating to share-based compensation, right-of-use assets and lease liabilities and assumptions that have been used historically&#13;to value warrants and warrant modifications. With the exception of the BlueRock/Bayer Agreement pursuant to which we recorded sublicense&#13;revenue in the third quarter of our fiscal year ended March 31, 2017, we do not currently have, nor have we had during the periods&#13;covered by this Report, any arrangements requiring the recognition of revenue.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Research and Development Expenses&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Research and development expenses are composed&#13;of both internal and external costs.&amp;#160;&amp;#160;Internal costs include salaries and employment-related expenses, including stock-based&#13;compensation expense, of scientific personnel and direct project costs.&amp;#160;&amp;#160;External research and development expenses consist&#13;primarily of costs associated with clinical and non-clinical development of PH94B, PH10, AV-101, and stem cell research and development&#13;costs, and costs related to the application and prosecution of patents related to those product candidates and, to a lesser extent,&#13;our stem cell technology platform. All such costs are charged to expense as incurred. We also record accruals for estimated ongoing&#13;clinical trial costs. Clinical trial costs represent costs incurred by contract research organizations (&lt;i&gt;CRO&lt;/i&gt;s) and clinical&#13;trial sites. Progress payments are generally made to CROs, clinical sites, investigators and other professional service providers.&#13;We analyze the progress of the clinical trial, including levels of subject enrollment, invoices received and contracted costs when&#13;evaluating the adequacy of accrued liabilities. Significant judgments and estimates must be made and used in determining the clinical&#13;trial accrual in any reporting period. Actual results could differ from those estimates under different assumptions. Revisions&#13;are charged to research and development expense in the period in which the facts that give rise to the revision become known. Costs&#13;incurred in obtaining product or technology licenses are charged immediately to research and development expense if the product&#13;or technology licensed has not achieved regulatory approval or reached technical feasibility and has no alternative future uses.&#13;In September and October 2018, we acquired exclusive worldwide licenses to develop and commercialize PH94B and PH10, respectively,&#13;by issuing an aggregate of 2,556,361 unregistered shares of our common stock having an issuance-date fair market value of $4,250,000.&#13;Since, at the date of each acquisition, neither product candidate had achieved regulatory approval and each requires significant&#13;additional development and expense, we expensed the costs related to acquiring the licenses and the option during our fiscal year&#13;ended March 31, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Stock-Based Compensation&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We recognize compensation cost for all stock-based&#13;awards to employees and non-employee consultants based on the grant date fair value of the award.&amp;#160;&amp;#160;We record non-cash,&#13;stock-based compensation expense over the period during which the employee or other grantee is required to perform services in&#13;exchange for the award, which generally represents the scheduled vesting period.&amp;#160;&amp;#160;We have not granted restricted stock&#13;awards to employees nor do we have any awards with market or performance conditions.&amp;#160;Non-cash expense attributable to compensatory&#13;grants of stock to non-employees is determined by the quoted market price of the stock on the date of grant and is either recognized&#13;as fully-earned at the time of the grant or amortized ratably over the term of the related service agreement, depending on the&#13;terms of the specific agreement.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The table below summarizes stock-based compensation&#13;expense included in the accompanying Condensed Consolidated Statements of Operations and Comprehensive Loss for the three and nine&#13;months ended December 31, 2019 and 2018.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 8pt Times New Roman, Times, Serif; width: 100%"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;Three Months Ended December 31,&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;Nine Months Ended December 31,&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2019&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2018&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2019&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2018&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 50%; font-size: 8pt"&gt;&amp;#160;Research and development expense&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;502,500&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;274,900&lt;/td&gt;&#13;    &lt;td style="width: 2%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;1,060,600&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;955,600&lt;/td&gt;&#13;    &lt;td style="width: 2%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;General and administrative expense&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;1,129,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;459,800&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;2,028,100&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;1,564,100&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;Total stock-based compensation expense&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;1,632,200&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;734,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;3,088,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;2,519,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In May 2019, the Compensation Committee of our&#13;Board of Directors (the &lt;i&gt;Board&lt;/i&gt;) approved the grant of options from our 2016 Amended and Restated Stock Incentive Plan (the&#13;&lt;i&gt;2016 Plan&lt;/i&gt;) to purchase an aggregate of 1,220,000 shares of our common stock at a then above-market exercise price of $1.00&#13;per share to the independent members of our Board, our officers and employees and certain consultants. The options vested 25% upon&#13;grant with the remaining shares vesting ratably over three years for independent directors, officers and employees, and over two&#13;years for consultants. We valued the options granted in May 2019 using the Black-Scholes Option Pricing Model and the following&#13;weighted average assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In May 2019, the Compensation Committee of our&#13;Board of Directors (the &lt;i&gt;Board&lt;/i&gt;) approved the grant of options from our 2016 Amended and Restated Stock Incentive Plan (the&#13;&lt;i&gt;2016 Plan&lt;/i&gt;) to purchase an aggregate of 1,220,000 shares of our common stock at a then above-market exercise price of $1.00&#13;per share to the independent members of our Board, our officers and employees and certain consultants. The options vested 25% upon&#13;grant with the remaining shares vesting ratably over three years for independent directors, officers and employees, and over two&#13;years for consultants. We valued the options granted in May 2019 using the Black-Scholes Option Pricing Model and the following&#13;weighted average assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: justify; padding-bottom: 1pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center; border-bottom: Black 1pt solid"&gt;May 2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 87%; font-size: 8pt; text-align: justify"&gt;Market price per share at grant date&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.80&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2.12&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Expected term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.53&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;85.90&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,220,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold"&gt;Fair Value per share&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: right"&gt;0.54&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Additionally, in May 2019, the Compensation&#13;Committee approved, subject to subsequent stockholder approval at our 2019 Annual Meeting of Stockholders (&lt;i&gt;Annual Meeting&lt;/i&gt;)&#13;held in September 2019, the 2019 Omnibus Equity Incentive Plan (the &lt;i&gt;2019 Plan&lt;/i&gt;) and designated 7.5 million shares of our&#13;authorized common stock to be reserved thereunder. Further, in May 2019, the Compensation Committee granted options pursuant to&#13;the 2019 Plan to one of our officers to purchase 170,000 shares of our common stock at a then above-market exercise price of $1.00&#13;per share, which grant was contingent upon the approval of the 2019 Plan by our stockholders. Our stockholders approved the 2019&#13;Plan at our Annual Meeting and ratified the contingent grant. The option vested 25% upon approval of the 2019 Plan and the remaining&#13;shares vest ratably over three years. We valued the option using the Black-Scholes Option Pricing Model and the following assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: justify; padding-bottom: 1pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center; border-bottom: Black 1pt solid"&gt;September 2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 87%; font-size: 8pt; text-align: justify"&gt;Market price per share at grant date&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.84&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.45&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Expected term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.58&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;86.04&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;170,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold"&gt;Fair Value per share&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: right"&gt;0.56&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Upon approval of the 2019 Plan by our stockholders,&#13;no further option or other equity awards were permitted from our 2016 Plan and all remaining authorized shares of our common stock&#13;available for issuance under the 2016 Plan, 1,388,412 shares, became available for issuance under the 2019 Plan.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;During the quarter ended December 31, 2019,&#13;we granted options from our 2019 Plan to the independent members of our Board, our officers and employees and certain consultants&#13;to purchase an aggregate of 1,990,000 shares of our common stock at exercise prices ranging from $0.50 to $1.41 per share. Options&#13;granted to Board members, officers, employees and most consultants were vested 25% at grant with the remaining options vesting&#13;ratably over the following 24 months. In the case of options granted to certain consultants, the options were vested 25% at grant&#13;but the remaining vesting period was less than 24 months to coincide with contractual terms. We valued the options using the Black-Scholes&#13;Option Pricing Model and the following assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td colspan="12" style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;Options Granted on&lt;/b&gt;&amp;#160; &amp;#160; &amp;#160;&amp;#160; &amp;#160; &amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;October 21, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;November 7, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;December 4, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;December 15, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 48%; font-size: 8pt"&gt;Exercise price&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;1.41&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;1.20&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.50&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.70&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Market price on date of grant&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.41&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.01&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.44&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.70&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.62&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.74&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.60&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.66&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Expected term (years)&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.39&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;87.52&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.02&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.28&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.44&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Expected dividend yield&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Fair value per share at grant date&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.99&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.67&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.30&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.49&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Number of shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,575,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;65,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;250,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;100,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;At December 31, 2019, there were stock options&#13;outstanding under our 2016 Plan and 2019 Plan to purchase 9,928,088 shares of our common stock at a weighted average exercise price&#13;of $1.37 per share. At that date, there were also 6,805,162 shares of our common stock available for future issuance under the&#13;2019 Plan. See Note 11, &lt;i&gt;Subsequent Events&lt;/i&gt;, for disclosure of additional option grants made in January 2020.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Leases, Right-of-Use Assets and Lease Liabilities&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;On April 1, 2019, we adopted Financial Accounting&#13;Standards Board (&lt;i&gt;FASB&lt;/i&gt;) Accounting Standards Update (&lt;i&gt;ASU&lt;/i&gt;) No.&amp;#160;2016-02,&amp;#160;&lt;i&gt;Leases&lt;/i&gt;, which replaced the&#13;existing guidance in Accounting Standards Codification (&lt;i&gt;ASC&lt;/i&gt;) 840, &amp;#8220;Leases&amp;#8221;, and its subsequent amendments including&#13;ASU No. 2018-11,&amp;#160;&lt;i&gt;Leases (Topic 842):&lt;/i&gt; Targeted&amp;#160;Improvements (&lt;i&gt;ASC 842&lt;/i&gt;) using the modified transition method.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We determine whether an arrangement is an operating&#13;or financing lease at contract inception. Operating lease assets represent our right to use an underlying asset for the lease term&#13;and operating lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease assets&#13;and liabilities are recognized at the commencement date of the lease based upon the present value of lease payments over the lease&#13;term. When determining the lease term, we include options to extend or terminate the lease when it is reasonably certain that we&#13;will exercise that option. In determining the present value of the lease payments, we use the interest rate implicit in the lease&#13;when it is readily determinable and we use our estimated incremental borrowing rate based upon information available at the commencement&#13;date when the implicit rate is not readily determinable.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The lease payments used to determine our operating&#13;lease assets include lease incentives and stated rent increases and may include escalation or other clauses linked to rates of&#13;inflation or other factors when determinable and are recognized in our operating lease assets in our condensed consolidated balance&#13;sheets.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Our operating leases are reflected in right&#13;of use asset &amp;#8211; operating leases, other current liabilities and non-current operating lease liability in our condensed consolidated&#13;balance sheets. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. Short-term&#13;leases, defined as leases that have a lease term of 12 months or less at the commencement date, are excluded from this treatment&#13;and are recognized on a straight-line basis over the term of the lease.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Our accounting for financing leases, previously&#13;referred to as &amp;#8220;capital leases&amp;#8221; under prior guidance, remained substantially unchanged with our adoption of ASC 842.&#13;Financing leases are included in property and equipment, net and as current and non-current financing lease liabilities in our&#13;condensed consolidated balance sheets. Refer to &amp;#8220;Recent Accounting Pronouncements&amp;#8221; below and Note 10, &lt;i&gt;Commitments&#13;and Contingencies,&lt;/i&gt; for additional information regarding our adoption of ASC 842 and its impact on our condensed consolidated&#13;financial statements.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Comprehensive Loss&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We have no components of other comprehensive&#13;loss other than net loss, and accordingly our comprehensive loss is equivalent to our net loss for the periods presented.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;Loss per Common Share&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Basic net loss attributable to common stockholders&#13;per share of common stock excludes the effect of dilution and is computed by dividing net loss increased by the accrual of dividends&#13;on outstanding shares of our Series B 10% Convertible Preferred Stock (&lt;i&gt;Series B Preferred&lt;/i&gt;), by the weighted-average number&#13;of shares of common stock outstanding for the period. Diluted net loss attributable to common stockholders per share of common&#13;stock reflects the potential dilution that could occur if securities or other contracts to issue shares of common stock were exercised&#13;or converted into shares of common stock. In calculating diluted net loss attributable to common stockholders per share, we have&#13;generally not increased the denominator to include the number of potentially dilutive common shares assumed to be outstanding during&#13;the period using the treasury stock method because the result is antidilutive.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;As a result of our net loss for all periods&#13;presented, potentially dilutive securities were excluded from the computation of diluted net loss per share, as their effect would&#13;be antidilutive. Potentially dilutive securities excluded in determining diluted net loss attributable to common stockholders per&#13;common share are as follows:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-weight: bold; padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="7" style="font-weight: bold; text-align: center; border-bottom: Black 1pt solid; font-size: 8pt"&gt;As of December 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-weight: bold; padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-weight: bold; text-align: center; border-bottom: Black 1pt solid; font-size: 8pt"&gt;2019&lt;/td&gt;&lt;td style="font-weight: bold; padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-weight: bold; text-align: center; border-bottom: Black 1pt solid; font-size: 8pt"&gt;2018&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 74%; text-align: left; font-size: 8pt"&gt;Series A Preferred stock issued and outstanding (1)&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right; font-size: 8pt"&gt;750,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right; font-size: 8pt"&gt;750,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;Series B Preferred stock issued and outstanding (2)&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1,160,240&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1,160,240&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;Series C Preferred stock issued and outstanding (3)&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;2,318,012&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;2,318,012&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;Outstanding options under the Company's Amended and Restated 2016 (formerly 2008) Stock Incentive Plan and 2019 Omnibus Equity Incentive Plan&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;9,928,088&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;6,410,338&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: left; padding-bottom: 1pt; font-size: 8pt"&gt;Outstanding warrants to purchase common stock&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; font-size: 8pt"&gt;23,050,204&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; font-size: 8pt"&gt;21,499,955&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt; font-size: 8pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right; font-size: 8pt"&gt;37,206,544&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right; font-size: 8pt"&gt;32,138,545&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 8pt Times New Roman, Times, Serif; width: 100%"&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td style="width: 70%; font-size: 8pt"&gt;____________&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 14%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 14%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td colspan="5" style="font-size: 8pt"&gt;(1) Assumes exchange under the terms of the October 11,&#13;    2012 Note Exchange and Purchase Agreement, as amended.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td colspan="5" style="font-size: 8pt"&gt;(2) Assumes exchange under the terms of the Certificate&#13;    of Designation of the Relative Rights and Preferences of the Series B 10% Convertible Preferred Stock, effective May 5, 2015;&#13;    excludes common shares issuable in payment of dividends on Series B Preferred upon conversion.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td colspan="5" style="font-size: 8pt"&gt;(3) Assumes exchange under the terms of the Certificate&#13;    of Designation of the Relative Rights and Preferences of the Series C Convertible Preferred Stock, effective January 25, 2016.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Fair Value Measurements&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We do not use derivative instruments for hedging&#13;of market risks or for trading or speculative purposes. We carried no assets or liabilities that are measured on a recurring basis&#13;at fair value at December 31, 2019 or March&amp;#160;31, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;Recent Accounting Pronouncements&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Except as described below, there have been no&#13;recent accounting pronouncements or changes in accounting pronouncements during the nine months ended December 31, 2019, as compared&#13;to the recent accounting pronouncements described in our Form 10-K for our fiscal year ended March 31, 2019, that are of significance&#13;or potential significance to us.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In February 2016, the FASB issued ASU No.&amp;#160;2016-02,&amp;#160;&lt;i&gt;Leases&lt;/i&gt;,&#13;which replaced the existing guidance in ASC 840, &amp;#8220;Leases&amp;#8221;, and in July 2018, the FASB issued ASU No. 2018-11,&amp;#160;&lt;i&gt;Leases&#13;(Topic 842):&lt;/i&gt; Targeted&amp;#160;Improvements (together, &lt;i&gt;ASC 842&lt;/i&gt;). The new leasing standards set out the principles for the&#13;recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees and lessors). The&#13;new standards require lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle&#13;of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease&#13;expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease, respectively.&#13;A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months&#13;regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to the prior guidance&#13;for operating leases. We adopted the standards on the required effective date of April 1, 2019 and did not restate lease expense&#13;or lease-related assets or liabilities reported in prior comparative periods.&amp;#160;Presentation of our financing lease for office&#13;equipment in the consolidated balance sheet is generally consistent with capitalized lease presentation under the prior lease accounting&#13;guidance. Presentation of leases within the consolidated statements of operations and consolidated statements of cash flows is&#13;generally consistent with the prior lease accounting guidance. We elected the package of practical expedients permitted under the&#13;transition guidance and, accordingly, the adoption of ASC 842 did not change the prior classification of any of our leases.&amp;#160;We&#13;elected not to record a right-of-use asset or a lease liability on the balance sheet for leases with a term of 12 months or less&#13;and will recognize the associated lease payments in the consolidated statements of operations over the lease term.&amp;#160;On the&#13;April 1, 2019 adoption date, we recognized approximately $4.3 million as total lease liabilities and $3.9 million as total right-of-use&#13;assets in our Condensed Consolidated Balance Sheet and derecognized a deferred rent liability of approximately $0.4 million attributable&#13;to the operating lease of our primary office and laboratory facilities recorded in accordance with prior guidance.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
    <us-gaap:OtherAssetsDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;Prepaid expenses and other current assets are composed of the following&#13;at December 31, 2019 and March 31, 2019:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;March 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; font-size: 8pt; text-align: left"&gt;&amp;#160;Clinical and nonclinical materials and contract services&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;121,000&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;5,900&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Fair value of securities issued for professional services&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#8212;&amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;105,900&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;Insurance&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;119,300&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;96,300&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Public offering filing fees and expenses&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;30,500&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;22,300&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 1pt"&gt;&amp;#160;Conferences, sponsorships and all other&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;48,200&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;20,500&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;319,000&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;250,900&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The fair value of securities issued for professional&#13;services reflects the unamortized portion of the fair value of securities we have issued to certain professional service providers&#13;as full or partial compensation for services. The fair value of the securities issued is amortized ratably over the term of the&#13;related service agreement.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:OtherAssetsDisclosureTextBlock>
    <us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;Property and equipment is composed of the following at December 31,&#13;2019 and March 31, 2019:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;March 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; font-size: 8pt; text-align: left"&gt;&amp;#160;Laboratory equipment&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;892,500&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;892,500&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Tenant improvements&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;214,400&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;214,400&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Computers and network equipment&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;54,600&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;54,600&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 1pt"&gt;&amp;#160;Office furniture and equipment&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;84,600&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;84,600&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,246,100&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,246,100&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 1pt"&gt;&amp;#160;Accumulated depreciation and amortization&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;(1,011,000&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;(933,400&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 2.5pt"&gt;&amp;#160;Property and equipment, net&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;235,100&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;312,700&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Included in amounts reported above for office&#13;furniture and equipment is the right-of-use asset related to a financing lease of certain office equipment. Amounts associated&#13;with assets subject to the financing lease at December 31, 2019 and March 31, 2019 are as follows:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;March 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; font-size: 8pt; text-align: left"&gt;&amp;#160;Office equipment subject to financing lease&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;14,700&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;14,700&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 1pt"&gt;&amp;#160;Accumulated depreciation&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;(8,700&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;(6,500&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 2.5pt"&gt;&amp;#160;Net book value of office equipment subject to financing lease&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;6,000&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;8,200&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock>
    <us-gaap:DebtDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;The following table summarizes our unsecured promissory notes at&#13;December 31, 2019 and March 31, 2019:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%"&gt;&#13;&lt;tr&gt;&#13;    &lt;td style="vertical-align: top"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="vertical-align: bottom; padding-bottom: 1.5pt"&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;December 31, 2019&lt;/b&gt; &amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="vertical-align: bottom"&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;March 31, 2019&lt;/b&gt; &amp;#160; &amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td style="width: 43%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 10%; text-align: center"&gt;&lt;font style="font-size: 8pt"&gt;Principal&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 8%; text-align: center"&gt;&lt;font style="font-size: 8pt"&gt;Accrued&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 8%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 2%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 10%; text-align: center"&gt;&lt;font style="font-size: 8pt"&gt;Principal&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 8%; text-align: center"&gt;&lt;font style="font-size: 8pt"&gt;Accrued&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="width: 10%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;Balance&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;Interest&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;Total&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;Balance&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;Interest&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;Total&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;7.75% and 7.15% Notes payable&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;to insurance premium financing company (current)&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$ 70,500&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$ -&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$ 70,500&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$ 57,300&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$ -&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td style="text-align: right"&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$ 57,300&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In May 2019, we executed a 7.15% promissory&#13;note in the principal amount of $230,200 in connection with certain insurance policy premiums. The note is payable in monthly installments&#13;of $23,800, including principal and interest, through March 2020, and had an outstanding principal balance of $70,500 at December&#13;31, 2019. In February 2019, we executed a 7.75% promissory note in the principal amount of $63,500 in connection with other insurance&#13;policy premiums. That note was payable in monthly installments of $6,600 including principal and interest, through December 2019&#13;and was fully paid at December 31, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:DebtDisclosureTextBlock>
    <us-gaap:StockholdersEquityNoteDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;At our Annual Meeting of Stockholders on September&#13;5, 2019, as approved by and recommended to our stockholders by our Board, our stockholders approved an amendment to our Restated&#13;Articles of Incorporation to increase the authorized number of shares of common stock that we may issue from 100.0 million shares&#13;to 175.0 million shares. The amendment became effective on September 6, 2019, upon our filing of a certificate of amendment with&#13;the Nevada Secretary of State.&lt;/p&gt;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Fall 2019 Private Placement&lt;/i&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Between October&#13;30, 2019 and November 7, 2019, in a self-placed private placement and pursuant to subscription agreements received from certain&#13;accredited investors, we sold to such investors units, at a purchase price of $1.00 per unit, consisting of an aggregate of 650,000&#13;unregistered shares of our common stock and warrants, exercisable beginning six months following issuance and through November&#13;1, 2023, to purchase 325,000 unregistered shares of our common stock at an exercise price of $2.00 per share (the &lt;i&gt;Fall 2019&#13;Private Placement&lt;/i&gt;). We received cash proceeds of $650,000 from the Fall 2019 Private Placement.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;As further described&#13;below under &amp;#8220;Winter 2019 Warrant Modification,&amp;#8221; in December 2019, we modified the warrants issued in connection with&#13;the Fall 2019 Private Placement to (i) reduce the exercise price from $2.00 per share to $0.50 per share and (ii) to allow for&#13;the warrants to become immediately exercisable. Further, we issued warrants to purchase an aggregate of 325,000 additional shares&#13;of our common stock to the participants in the Fall 2019 Private Placement (the &lt;i&gt;Additional Warrants&lt;/i&gt;) to increase the number&#13;of unregistered shares of common stock issuable upon exercise of the warrants from 50% to 100%. The Additional Warrants are immediately&#13;exercisable through March 31, 2024 at an exercise price of $0.50 per share.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We calculated&#13;the fair value of the Additional Warrants using the Black Scholes Option Pricing Model and the weighted average assumptions indicated&#13;in the table below, recognizing $88,800 as the fair value of the new warrants and as warrant modification expense, included as&#13;a component of general and administrative expenses, in our Condensed Consolidated&amp;#160;Statement of Operations and Comprehensive&#13;Loss for the three and nine months ended December 31, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify; font-size: 8pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Additional&#13;                                         Warrants&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 87%; text-align: justify; font-size: 8pt"&gt;Market price per share&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right; font-size: 8pt"&gt;0.44&lt;/td&gt;&lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.50&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1.59&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Contractual term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;4.32&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;86.64&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Number of warrant shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;325,000&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-weight: bold; font-size: 8pt"&gt;Weighted average fair value per share&lt;/td&gt;&lt;td style="font-weight: bold; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right; font-size: 8pt"&gt;0.27&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Winter 2019&#13;Warrant Modification&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;On December 4,&#13;2019, we modified outstanding warrants previously issued as a part of completed private placements to temporarily reduce, for&#13;a period of two years or, if sooner, until the expiration of the warrant, the exercise price of such warrants to $0.50 per share,&#13;in order to more closely align the exercise price of the warrants with the trading price of our common stock at such time (the&#13;&lt;i&gt;Winter 2019 Warrant Modification&lt;/i&gt;). Following the two-year period during which the exercise price is reduced, the exercise&#13;price of each modified warrant will revert to its pre-modification price. As a result of the Winter 2019 Warrant Modification,&#13;outstanding warrants to purchase a total of approximately 6.6 million unregistered shares of our common stock were modified.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We calculated&#13;the fair value of the modified warrants, including those issued in the Fall 2019 Private Placement, immediately before and after&#13;the modification using the Black Scholes Option Pricing Model for pre-modification valuations and for post-modification valuations&#13;for warrants expiring in less than two years. For the warrants expiring after the December 4, 2021 exercise price reversion date,&#13;we ran a binomial model using 24 steps, one for each month, and lognormal distribution to estimate our stock price at December&#13;4, 2021, the termination date for the exercise price reduction. We then compared the exercise value of each warrant at each estimated&#13;stock price to the remaining option value if the warrant was not exercised on December 4, 2021 and allowed to revert to its original&#13;exercise price. For any estimated stock price above $0.50 per share (an in-the-money warrant), we determined that the holders&#13;would convert their warrants. For any estimated stock price below $0.50 per share, we determined that the holders would continue&#13;to hold their warrants. Given the significant reductions in exercise price (the pre-modification exercise prices range from $1.50&#13;to $2.24 per share), if the warrants are not exercised prior to December 4, 2021, the Black-Scholes values upon the reversion&#13;of the exercise prices are very low, such that there is nominal additional value for continuing to hold the warrants. Accordingly,&#13;our estimated post-modification fair value for warrants having an expiration date later than the two-year exercise price reversion&#13;date, December 4, 2021, is equal to the value of an option determined using the Black Scholes Option Pricing Model having an exercise&#13;price of $0.50 per share and a two-year term and related assumptions. The table below indicates the pre- and post-modification&#13;weighted average assumptions used in our valuations. We recognized the incremental fair value, $702,500, as warrant modification&#13;expense, included as a component of general and administrative expenses, in our Condensed Consolidated&amp;#160;Statement of Operations&#13;and Comprehensive Loss for the three and nine months ended December 31, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify; font-size: 8pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center; font-size: 8pt"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Pre-modification&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center; font-size: 8pt"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Post-modification&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 74%; text-align: justify; font-size: 8pt"&gt;Market price per share&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right; font-size: 8pt"&gt;0.44&lt;/td&gt;&lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right; font-size: 8pt"&gt;0.44&lt;/td&gt;&lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1.98&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.50&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1.58&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1.58&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Remaining contractual term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;2.25&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1.91&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;87.5&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;88.1&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Number of warrant shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;6,611,759&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;6,611,759&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify; font-size: 8pt"&gt;Weighted average fair value&#13;    per share&lt;/td&gt;&lt;td style="font-weight: bold; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right; font-size: 8pt"&gt;0.08&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-weight: bold; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right; font-size: 8pt"&gt;0.19&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Following the&#13;Winter 2019 Warrant Modification, investors holding a total 820,000 warrants elected to exercise their warrants at the reduced&#13;price of $0.50 per share, resulting in proceeds to us of $410,000.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;December 19,&#13;2019 Warrant Modification&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;On December 19,&#13;2019, we modified outstanding warrants previously issued as a part of a completed private placement to permanently reduce the&#13;exercise price of such warrants to $0.805 per share and to extend the term of such warrants through December 31, 2022, in order&#13;to more closely align the exercise price of the warrants with the current trading price of our common stock and to provide additional&#13;time for the holders to exercise the warrants (the &lt;i&gt;December 19, 2019 Warrant Modification&lt;/i&gt;). As a result of the December&#13;19, 2019 Warrant Modification, outstanding warrants to purchase a total of 80,431 shares of common stock were modified.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We calculated&#13;the fair value of the modified warrants immediately before and after the modification using the Black Scholes Option Pricing Model&#13;and the weighted average assumptions indicated in the table below. We recognized the incremental fair value, $35,600, as warrant&#13;modification expense, included as a component of general and administrative expenses, in our Condensed Consolidated&amp;#160;Statement&#13;of Operations and Comprehensive Loss for the three and nine months ended December 31, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify; font-size: 8pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Pre-modification&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center; font-size: 8pt"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Post-modification&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 74%; text-align: justify; font-size: 8pt"&gt;Market price per share&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right; font-size: 8pt"&gt;0.805&lt;/td&gt;&lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right; font-size: 8pt"&gt;0.805&lt;/td&gt;&lt;td style="width: 1%; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;7.00&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.805&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1.57&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;1.65&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Remaining contractual term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.58&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;3.034&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;98.7&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;84.9&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="text-align: justify; font-size: 8pt"&gt;Number of warrant shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;80,431&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;80.431&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify; font-size: 8pt"&gt;Weighted average fair value&#13;    per share&lt;/td&gt;&lt;td style="font-weight: bold; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right; font-size: 8pt"&gt;0.00&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-weight: bold; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right; font-size: 8pt"&gt;.044&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Winter 2019&#13;Warrant Offering&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In December 2019,&#13;we commenced a self-placed private placement of warrants to purchase unregistered shares of our common stock at an offering price&#13;of $0.15 per warrant (the &lt;i&gt;Winter 2019 Warrant Offering&lt;/i&gt;). Warrants offered and sold in the Winter 2019 Warrant Offering&#13;have an exercise price of $0.50 per share and term of three years from the issuance date. Over the course of the Winter 2019 Warrant&#13;Offering, we sold warrants to purchase a total of 2.0 million unregistered shares of common stock for cash proceeds to us of $300,000,&#13;which we accounted for with a corresponding credit to additional paid-in capital, an equity account.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&lt;i&gt;&amp;#160;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&lt;i&gt;Warrants&#13;Outstanding&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following&#13;table summarizes warrants outstanding and exercisable as of December 31, 2019 subsequent to the issuances and modifications described&#13;above. The weighted average exercise price of outstanding and exercisable warrants at December 31, 2019 is $1.88 per share and&#13;$1.90 per share, respectively.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td colspan="3" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Warrants&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Warrants&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Exercise&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Outstanding at&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Exercisable at&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Price&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Expiration&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;per&#13;    Share&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; border-bottom: Black 1pt solid"&gt;&amp;#160;&lt;b&gt;Date&lt;/b&gt;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;&lt;b&gt;2019&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td colspan="3" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 23%; font-size: 8pt; text-align: right"&gt;0.50&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 22%; font-size: 8pt; text-align: right"&gt;5/20/2020&#13;                                         to 3/31/2024&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 22%; font-size: 8pt; text-align: right"&gt;8,116,759&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 22%; font-size: 8pt; text-align: right"&gt;7,791,759&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.805&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;12/31/2022&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;80,431&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;80,431&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.50&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;12/13/2022&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;9,596,200&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;9,596,200&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.82&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;3/7/2023&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,388,931&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,388,931&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;3.51&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;12/31/2021&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;50,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;50,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.30&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5/16/2021&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2,705,883&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2,705,883&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;7.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1/11/2020&#13;                                         to 3/3/2023&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,092,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,092,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;10.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1/11/2020&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;20,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;20,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;23,050,204&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right; font-size: 8pt"&gt;22,725,204&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Of the warrants&#13;outstanding at December 31, 2019, 2,705,883 shares of common stock underlying the warrants exercisable at $5.30 per share issued&#13;in our May 2016 public offering, 1,388,931 shares of common stock underlying the warrants exercisable at $1.82 per share issued&#13;in our September 2017 public offering and 9,596,200 shares of common stock underlying the warrants exercisable at $1.50 per share&#13;issued in our December 2017 public offering are registered for resale by the warrant holders. The common shares issuable upon&#13;exercise of our remaining outstanding warrants are unregistered. At December 31, 2019, none of our outstanding warrants are subject&#13;to down round anti-dilution protection features and all of the outstanding warrants are exercisable by the holders only by payment&#13;in cash of the stated exercise price per share.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:StockholdersEquityNoteDisclosureTextBlock>
    <us-gaap:RelatedPartyTransactionsDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Cato Holding Company (&lt;i&gt;CHC&lt;/i&gt;), doing business&#13;as Cato BioVentures (&lt;i&gt;CBV&lt;/i&gt;), is the parent of Cato Research Ltd. (&lt;i&gt;CRL&lt;/i&gt;). CRL is a contract research, development and&#13;regulatory services organization (&lt;i&gt;CRO&lt;/i&gt;) that we have engaged for a wide range of material aspects related to the nonclinical&#13;and clinical development, manufacturing and regulatory affairs associated with our efforts to develop and commercialize PH94B,&#13;PH10, AV-101. At December 31, 2019, CBV held approximately 2% of our outstanding common stock.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In July 2017, we entered into a Master Services&#13;Agreement (&lt;i&gt;MSA&lt;/i&gt;) with CRL, which replaced a substantially similar May 2007 master services agreement, pursuant to which CRL&#13;may assist us in the evaluation, development, commercialization and marketing of our potential product candidates, and provide&#13;regulatory and strategic consulting services as requested from time to time. Specific projects or services are and will be delineated&#13;in individual work orders negotiated from time-to-time under the MSA. Under the terms of work orders issued pursuant to the July&#13;2017 MSA and our prior May 2007 master services agreement, we incurred expenses of $842,100 and $1,075,800 during the quarters&#13;ended December 31, 2019 and 2018, respectively, and $3,858,000 and $2,705,600 for the nine months ended December 31, 2019 and 2018,&#13;respectively. At December 31, 2019 and March 31, 2019, we had recorded accounts payable and accrued expenses related to CRL aggregating&#13;$898,500 and $657,800, respectively. We anticipate periodic expenses for CRO services from CRL related to nonclinical and clinical&#13;development of, and regulatory affairs related to PH94B, PH10, AV-101 and other potential product candidates will increase in future&#13;periods.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;During our fiscal year ended March 31, 2019,&#13;we issued an aggregate of 2,556,361 shares of our unregistered common stock having an issue-date fair market value of $4,250,000&#13;to Pherin Pharmaceuticals, Inc. (&lt;i&gt;Pherin&lt;/i&gt;) to acquire exclusive worldwide licenses to develop and commercialize PH94B and&#13;PH10. We recorded the acquisition of the licenses as research and development expense during our fiscal year ended March 31, 2019.&#13;During the quarters ended December 31, 2019 and 2018, we recorded $30,000 in each quarter, and during the nine months ended December&#13;31, 2019 and 2018, we recorded $90,000 and $40,000, respectively, representing monthly support payments to Pherin under the terms&#13;of the PH94B license agreement. We recorded no amounts payable to Pherin at December 31, 2019 or March 31, 2019. At December 31,&#13;2019, Pherin held approximately 3% of our outstanding common stock.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;During the nine months ended December 31, 2019,&#13;we engaged the consulting firm headed by one of the independent members of our Board to provide various market research studies&#13;and commercial modeling projects for certain of our CNS pipeline candidates and recorded research and development expense of $5,600&#13;for the quarter ended December 31, 2019 and $108,400 for the nine months ended December 31, 2019 related to such studies. We incurred&#13;no such expenses for the three months ended December 31, 2018 and $11,700 for the nine months ended December 31, 2018. We recorded&#13;no amounts payable at December 31, 2019 or March 31, 2019 related to these studies.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:RelatedPartyTransactionsDisclosureTextBlock>
    <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&lt;i&gt;Operating Leases&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We lease our headquarters office and laboratory&#13;space in South San Francisco, California under the terms of a lease that expires on July 31, 2022 and that provides an option to&#13;renew for an additional five years at then-current market rates. Consistent with the guidance in ASC 842, effective beginning April&#13;1, 2019, we have recorded this lease in our Condensed Consolidated Balance Sheet as an operating lease. For the purpose of determining&#13;the right-of-use asset and associated lease liability, we determined that the renewal of this lease is reasonably probable.&amp;#160;The&#13;lease of our South San Francisco facilities does not include any restrictions or covenants requiring special treatment under ASC&#13;842.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table summarizes the presentation&#13;of the operating lease in our Condensed Consolidated Balance Sheet at December 31, 2019:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;As&amp;#160;of&amp;#160;&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;December 31, 2019&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-style: italic"&gt;Assets&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 87%; text-align: left"&gt;Right of use asset &amp;#8211; operating lease&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;3,665,600&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-style: italic"&gt;Liabilities&lt;/td&gt;&lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Current operating lease obligation&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;301,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Non-current operating lease obligation&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;3,798,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Total operating lease liability&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;4,099,800&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 27pt"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The following table summarizes the effect of&#13;operating lease costs in the Company&amp;#8217;s condensed consolidated statements of operations:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt; text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;For&amp;#160;the&amp;#160;Three&amp;#160;Months&amp;#160;Ended&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-weight: bold; text-align: center"&gt;For&amp;#160;the&amp;#160;Nine&amp;#160;Months&amp;#160;Ended&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt; text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;December&#13;                                         31, 2019&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;December&#13;                                         31, 2019&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; text-align: left"&gt;Operating lease cost&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;203,100&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;615,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 27pt"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;The minimum (base rental) lease payments related to our South San&#13;Francisco operating lease are expected to be as follows:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td colspan="3" style="font-weight: bold; text-align: left"&gt;Fiscal Years Ending March 31,&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 48%; text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;2020 (remaining three months)&lt;/font&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 47%; text-align: right"&gt;157,800&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2021&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;645,800&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2022&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;668,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2023&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;726,000&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2024&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;766,000&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Thereafter&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2,720,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Total lease expense&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;5,684,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Less imputed interest&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;(1,584,600&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Present value of operating lease liabilities&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;4,099,800&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Under the prior lease guidance, future minimum&#13;lease payments, under the non-cancellable portion (excluding the five-year extension assumed under ASC 842) of the South San Francisco&#13;operating lease were as follows at March 31, 2019:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td colspan="3" style="font-weight: bold; text-align: left"&gt;Fiscal Years Ending March 31,&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 48%; text-align: left"&gt;2020&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 47%; text-align: right"&gt;623,900&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2021&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;645,800&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2022&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;668,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2023&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;225,300&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2024&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#8212;&amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Thereafter&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#8212;&amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;2,163,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;The remaining lease term, including the assumed five-year extension&#13;at the expiration of the current lease period, and the discount rate assumption for our South San Francisco operating lease is&#13;as follows:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;b&gt;As&amp;#160;of&amp;#160;December 31,&amp;#160;2019&lt;/b&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 87%; text-align: left"&gt;Assumed remaining lease term in years&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;7.58&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Assumed discount rate&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;8.54&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The interest rate implicit in lease contracts&#13;is typically not readily determinable and, as such, we used our estimated incremental borrowing rate based on information available&#13;at the adoption of ASC 842, which represents an internally developed rate that would be incurred to borrow, on a collateralized&#13;basis, over a similar term, an amount equal to the lease payments in a similar economic environment.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Supplemental disclosure of cash flow information&#13;related to the Company&amp;#8217;s operating leases included in cash flows used by operating activities in the condensed consolidated&#13;statements of cash flows is as follows:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;b&gt;For&amp;#160;the&amp;#160;Nine Months&amp;#160;Ended&lt;/b&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;December 31, 2019&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 87%; text-align: left"&gt;Cash paid for amounts included in the measurement of lease liabilities&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;561,900&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-indent: 45pt"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;During the nine months ended December 31, 2019,&#13;other than the initial adoption of ASC 842 that required right of use assets and lease liabilities to be recorded, we recorded&#13;no new right of use assets arising from new lease liabilities.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We also lease a small office in the San Francisco&#13;Bay Area under a month-to-month arrangement at insignificant cost and have made an accounting policy election not to apply the&#13;ASC 842 operating lease recognition requirements to such short-term lease. We recognize the lease payments for this lease in general&#13;and administrative expense over the lease term.&amp;#160;We recorded rent expense of $3,500 and $10,500 for the three and nine months&#13;ended December 31, 2019, respectively, attributable to this lease.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
    <us-gaap:SubsequentEventsTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We have evaluated subsequent events through&#13;February 13, 2020 and have identified the following matters requiring disclosure:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&lt;i&gt;Registered Direct Offering of Common Stock&#13;and Concurrent Warrant Offering&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;On January&amp;#160;24, 2020, we entered into a&#13;securities purchase agreement with certain accredited investors pursuant to which we received gross cash proceeds of $2.75 million&#13;upon the sale of an aggregate of 3,870,077 shares of our common stock at a purchase price of $0.71058 per share (the &lt;i&gt;January&#13;2020 Offering&lt;/i&gt;). Concurrently with the January 2020 Offering, we also commenced a private placement in which we issued and sold&#13;warrants (the &lt;i&gt;Warrants&lt;/i&gt;) exercisable for an aggregate of 3,870,077&amp;#160;unregistered shares of our common stock (the &lt;i&gt;Warrant&#13;Shares&lt;/i&gt;), having an exercise price of $0.73 per Warrant Share. The 3,870,077 shares of common stock sold in the January 2020&#13;Offering (but not the Warrants or the Warrant Shares) were offered and sold pursuant to a prospectus, dated September 30, 2019,&#13;and a prospectus supplement dated January&amp;#160;24, 2020, in connection with a takedown from our shelf registration statement on&amp;#160;Form&amp;#160;S-3&amp;#160;(File&amp;#160;No.&amp;#160;333-234025).&lt;/p&gt;&#13;&#13;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;font style="background-color: white"&gt;The Warrants&#13;contain customary provisions allowing for adjustment to the exercise price and number of Warrant Shares issuable only in the event&#13;of any stock dividend and split, reverse stock split, recapitalization, reorganization or similar transaction, as described in&#13;the Warrants.&lt;/font&gt; In addition, &lt;font style="background-color: white"&gt;subject to limited exceptions, holders of the Warrants&#13;will not have the right to exercise any portion of their respective Warrants if the holder, together with any affiliates, would&#13;beneficially own in excess of 4.99% of the number of shares of our Common Stock outstanding immediately after giving effect to&#13;such exercise.&lt;/font&gt; The Warrants are exercisable from any time after the six-month anniversary of issuance (the &lt;i&gt;Initial Exercise&#13;Date&lt;/i&gt;) and will expire on the fifth&amp;#160;year anniversary of the Initial Exercise Date. The Warrants and the Warrants Shares&#13;have not been registered with the Securities and Exchange Commission.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;b&gt;&lt;i&gt;Grant of Options from the 2019 Plan&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In January 2020, we issued options to purchase&#13;75,000 shares of our common stock at an exercise price of $0.7074 per share pursuant to the 2019 Plan to a consultant as partial&#13;compensation under a professional services contract. The options were vested 25% upon grant with the remaining shares vested ratably&#13;over the next twelve months.&lt;/p&gt;</us-gaap:SubsequentEventsTextBlock>
    <us-gaap:UseOfEstimates contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The preparation of financial statements in conformity&#13;with U.S.&amp;#160;GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities,&#13;the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues&#13;and expenses during the reporting period. Actual results could differ from those estimates.&amp;#160;&amp;#160;Significant estimates include&#13;those relating to share-based compensation, right-of-use assets and lease liabilities and assumptions that have been used historically&#13;to value warrants and warrant modifications. With the exception of the BlueRock/Bayer Agreement pursuant to which we recorded sublicense&#13;revenue in the third quarter of our fiscal year ended March 31, 2017, we do not currently have, nor have we had during the periods&#13;covered by this Report, any arrangements requiring the recognition of revenue.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:UseOfEstimates>
    <us-gaap:ResearchAndDevelopmentExpensePolicy contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Research and development expenses are composed&#13;of both internal and external costs.&amp;#160;&amp;#160;Internal costs include salaries and employment-related expenses, including stock-based&#13;compensation expense, of scientific personnel and direct project costs.&amp;#160;&amp;#160;External research and development expenses consist&#13;primarily of costs associated with clinical and non-clinical development of PH94B, PH10, AV-101, and stem cell research and development&#13;costs, and costs related to the application and prosecution of patents related to those product candidates and, to a lesser extent,&#13;our stem cell technology platform. All such costs are charged to expense as incurred. We also record accruals for estimated ongoing&#13;clinical trial costs. Clinical trial costs represent costs incurred by contract research organizations (&lt;i&gt;CRO&lt;/i&gt;s) and clinical&#13;trial sites. Progress payments are generally made to CROs, clinical sites, investigators and other professional service providers.&#13;We analyze the progress of the clinical trial, including levels of subject enrollment, invoices received and contracted costs when&#13;evaluating the adequacy of accrued liabilities. Significant judgments and estimates must be made and used in determining the clinical&#13;trial accrual in any reporting period. Actual results could differ from those estimates under different assumptions. Revisions&#13;are charged to research and development expense in the period in which the facts that give rise to the revision become known. Costs&#13;incurred in obtaining product or technology licenses are charged immediately to research and development expense if the product&#13;or technology licensed has not achieved regulatory approval or reached technical feasibility and has no alternative future uses.&#13;In September and October 2018, we acquired exclusive worldwide licenses to develop and commercialize PH94B and PH10, respectively,&#13;by issuing an aggregate of 2,556,361 unregistered shares of our common stock having an issuance-date fair market value of $4,250,000.&#13;Since, at the date of each acquisition, neither product candidate had achieved regulatory approval and each requires significant&#13;additional development and expense, we expensed the costs related to acquiring the licenses and the option during our fiscal year&#13;ended March 31, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:ResearchAndDevelopmentExpensePolicy>
    <us-gaap:CompensationRelatedCostsPolicyTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="margin: 0pt; font-size: 8pt"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We recognize compensation cost for all stock-based&#13;awards to employees and non-employee consultants based on the grant date fair value of the award.&amp;#160;&amp;#160;We record non-cash,&#13;stock-based compensation expense over the period during which the employee or other grantee is required to perform services in&#13;exchange for the award, which generally represents the scheduled vesting period.&amp;#160;&amp;#160;We have not granted restricted stock&#13;awards to employees nor do we have any awards with market or performance conditions.&amp;#160;Non-cash expense attributable to compensatory&#13;grants of stock to non-employees is determined by the quoted market price of the stock on the date of grant and is either recognized&#13;as fully-earned at the time of the grant or amortized ratably over the term of the related service agreement, depending on the&#13;terms of the specific agreement.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The table below summarizes stock-based compensation&#13;expense included in the accompanying Condensed Consolidated Statements of Operations and Comprehensive Loss for the three and nine&#13;months ended December 31, 2019 and 2018.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 8pt Times New Roman, Times, Serif; width: 100%"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;Three Months Ended December 31,&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;Nine Months Ended December 31,&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2019&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2018&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2019&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2018&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 50%; font-size: 8pt"&gt;&amp;#160;Research and development expense&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;502,500&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;274,900&lt;/td&gt;&#13;    &lt;td style="width: 2%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;1,060,600&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;955,600&lt;/td&gt;&#13;    &lt;td style="width: 2%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;General and administrative expense&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;1,129,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;459,800&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;2,028,100&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;1,564,100&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;Total stock-based compensation expense&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;1,632,200&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;734,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;3,088,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;2,519,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In May 2019, the Compensation Committee of our&#13;Board of Directors (the &lt;i&gt;Board&lt;/i&gt;) approved the grant of options from our 2016 Amended and Restated Stock Incentive Plan (the&#13;&lt;i&gt;2016 Plan&lt;/i&gt;) to purchase an aggregate of 1,220,000 shares of our common stock at a then above-market exercise price of $1.00&#13;per share to the independent members of our Board, our officers and employees and certain consultants. The options vested 25% upon&#13;grant with the remaining shares vesting ratably over three years for independent directors, officers and employees, and over two&#13;years for consultants. We valued the options granted in May 2019 using the Black-Scholes Option Pricing Model and the following&#13;weighted average assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: justify; padding-bottom: 1pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center; border-bottom: Black 1pt solid"&gt;May 2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 87%; font-size: 8pt; text-align: justify"&gt;Market price per share at grant date&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.80&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2.12&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Expected term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.53&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;85.90&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,220,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold"&gt;Fair Value per share&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: right"&gt;0.54&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Additionally, in May 2019, the Compensation&#13;Committee approved, subject to subsequent stockholder approval at our 2019 Annual Meeting of Stockholders (&lt;i&gt;Annual Meeting&lt;/i&gt;)&#13;held in September 2019, the 2019 Omnibus Equity Incentive Plan (the &lt;i&gt;2019 Plan&lt;/i&gt;) and designated 7.5 million shares of our&#13;authorized common stock to be reserved thereunder. Further, in May 2019, the Compensation Committee granted options pursuant to&#13;the 2019 Plan to one of our officers to purchase 170,000 shares of our common stock at a then above-market exercise price of $1.00&#13;per share, which grant was contingent upon the approval of the 2019 Plan by our stockholders. Our stockholders approved the 2019&#13;Plan at our Annual Meeting and ratified the contingent grant. The option vested 25% upon approval of the 2019 Plan and the remaining&#13;shares vest ratably over three years. We valued the option using the Black-Scholes Option Pricing Model and the following assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: justify; padding-bottom: 1pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center; border-bottom: Black 1pt solid"&gt;September 2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 87%; font-size: 8pt; text-align: justify"&gt;Market price per share at grant date&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.84&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.45&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Expected term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.58&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;86.04&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;170,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold"&gt;Fair Value per share&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: right"&gt;0.56&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Upon approval of the 2019 Plan by our stockholders,&#13;no further option or other equity awards were permitted from our 2016 Plan and all remaining authorized shares of our common stock&#13;available for issuance under the 2016 Plan, 1,388,412 shares, became available for issuance under the 2019 Plan.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;During the quarter ended December 31, 2019,&#13;we granted options from our 2019 Plan to the independent members of our Board, our officers and employees and certain consultants&#13;to purchase an aggregate of 1,990,000 shares of our common stock at exercise prices ranging from $0.50 to $1.41 per share. Options&#13;granted to Board members, officers, employees and most consultants were vested 25% at grant with the remaining options vesting&#13;ratably over the following 24 months. In the case of options granted to certain consultants, the options were vested 25% at grant&#13;but the remaining vesting period was less than 24 months to coincide with contractual terms. We valued the options using the Black-Scholes&#13;Option Pricing Model and the following assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td colspan="12" style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;Options Granted on&lt;/b&gt;&amp;#160; &amp;#160; &amp;#160;&amp;#160; &amp;#160; &amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="padding-bottom: 1pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;October 21, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;November 7, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;December 4, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;December 15, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 48%; font-size: 8pt"&gt;Exercise price&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;1.41&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;1.20&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.50&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.70&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Market price on date of grant&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.41&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.01&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.44&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.70&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.62&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.74&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.60&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.66&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Expected term (years)&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.39&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;87.52&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.02&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.28&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.44&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Expected dividend yield&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Fair value per share at grant date&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.99&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.67&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.30&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.49&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Number of shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,575,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;65,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;250,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;100,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;At December 31, 2019, there were stock options&#13;outstanding under our 2016 Plan and 2019 Plan to purchase 9,928,088 shares of our common stock at a weighted average exercise price&#13;of $1.37 per share. At that date, there were also 6,805,162 shares of our common stock available for future issuance under the&#13;2019 Plan. See Note 11, &lt;i&gt;Subsequent Events&lt;/i&gt;, for disclosure of additional option grants made in January 2020.&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;p style="margin: 0pt; font-size: 8pt"&gt;&lt;/p&gt;</us-gaap:CompensationRelatedCostsPolicyTextBlock>
    <us-gaap:LesseeLeasesPolicyTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;On April 1, 2019, we adopted Financial Accounting&#13;Standards Board (&lt;i&gt;FASB&lt;/i&gt;) Accounting Standards Update (&lt;i&gt;ASU&lt;/i&gt;) No.&amp;#160;2016-02,&amp;#160;&lt;i&gt;Leases&lt;/i&gt;, which replaced the&#13;existing guidance in Accounting Standards Codification (&lt;i&gt;ASC&lt;/i&gt;) 840, &amp;#8220;Leases&amp;#8221;, and its subsequent amendments including&#13;ASU No. 2018-11,&amp;#160;&lt;i&gt;Leases (Topic 842):&lt;/i&gt; Targeted&amp;#160;Improvements (&lt;i&gt;ASC 842&lt;/i&gt;) using the modified transition method.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We determine whether an arrangement is an operating&#13;or financing lease at contract inception. Operating lease assets represent our right to use an underlying asset for the lease term&#13;and operating lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease assets&#13;and liabilities are recognized at the commencement date of the lease based upon the present value of lease payments over the lease&#13;term. When determining the lease term, we include options to extend or terminate the lease when it is reasonably certain that we&#13;will exercise that option. In determining the present value of the lease payments, we use the interest rate implicit in the lease&#13;when it is readily determinable and we use our estimated incremental borrowing rate based upon information available at the commencement&#13;date when the implicit rate is not readily determinable.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;The lease payments used to determine our operating&#13;lease assets include lease incentives and stated rent increases and may include escalation or other clauses linked to rates of&#13;inflation or other factors when determinable and are recognized in our operating lease assets in our condensed consolidated balance&#13;sheets.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Our operating leases are reflected in right&#13;of use asset &amp;#8211; operating leases, other current liabilities and non-current operating lease liability in our condensed consolidated&#13;balance sheets. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. Short-term&#13;leases, defined as leases that have a lease term of 12 months or less at the commencement date, are excluded from this treatment&#13;and are recognized on a straight-line basis over the term of the lease.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Our accounting for financing leases, previously&#13;referred to as &amp;#8220;capital leases&amp;#8221; under prior guidance, remained substantially unchanged with our adoption of ASC 842.&#13;Financing leases are included in property and equipment, net and as current and non-current financing lease liabilities in our&#13;condensed consolidated balance sheets. Refer to &amp;#8220;Recent Accounting Pronouncements&amp;#8221; below and Note 10, &lt;i&gt;Commitments&#13;and Contingencies,&lt;/i&gt; for additional information regarding our adoption of ASC 842 and its impact on our condensed consolidated&#13;financial statements.&lt;/p&gt;</us-gaap:LesseeLeasesPolicyTextBlock>
    <us-gaap:ComprehensiveIncomePolicyPolicyTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We have no components of other comprehensive&#13;loss other than net loss, and accordingly our comprehensive loss is equivalent to our net loss for the periods presented.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:ComprehensiveIncomePolicyPolicyTextBlock>
    <us-gaap:EarningsPerSharePolicyTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Basic net loss attributable to common stockholders&#13;per share of common stock excludes the effect of dilution and is computed by dividing net loss increased by the accrual of dividends&#13;on outstanding shares of our Series B 10% Convertible Preferred Stock (&lt;i&gt;Series B Preferred&lt;/i&gt;), by the weighted-average number&#13;of shares of common stock outstanding for the period. Diluted net loss attributable to common stockholders per share of common&#13;stock reflects the potential dilution that could occur if securities or other contracts to issue shares of common stock were exercised&#13;or converted into shares of common stock. In calculating diluted net loss attributable to common stockholders per share, we have&#13;generally not increased the denominator to include the number of potentially dilutive common shares assumed to be outstanding during&#13;the period using the treasury stock method because the result is antidilutive.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;As a result of our net loss for all periods&#13;presented, potentially dilutive securities were excluded from the computation of diluted net loss per share, as their effect would&#13;be antidilutive. Potentially dilutive securities excluded in determining diluted net loss attributable to common stockholders per&#13;common share are as follows:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="7" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;As of December 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2018&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; font-size: 8pt; text-align: left"&gt;Series A Preferred stock issued and outstanding (1)&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;750,000&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;750,000&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Series B Preferred stock issued and outstanding (2)&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,160,240&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,160,240&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Series C Preferred stock issued and outstanding (3)&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2,318,012&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2,318,012&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Outstanding options under the Company's Amended and Restated 2016 (formerly 2008) Stock Incentive Plan and 2019 Omnibus Equity Incentive Plan&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;9,928,088&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;6,410,338&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 1pt"&gt;Outstanding warrants to purchase common stock&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;23,050,204&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;21,499,955&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;37,206,544&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;32,138,545&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%; font-size: 8pt"&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td style="width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;(1) Assumes exchange under&#13;    the terms of the October 11, 2012 Note Exchange and Purchase Agreement, as amended.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td style="font: 8pt Times New Roman, Times, Serif"&gt;(2) Assumes exchange under the terms of&#13;    the Certificate of Designation of the Relative Rights and Preferences of the Series B 10% Convertible Preferred Stock, effective&#13;    May 5, 2015; excludes common shares issuable in payment of dividends on Series B Preferred upon conversion.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td style="font: 8pt Times New Roman, Times, Serif"&gt;(3) Assumes exchange under the terms of&#13;    the Certificate of Designation of the Relative Rights and Preferences of the Series C Convertible Preferred Stock, effective&#13;    January 25, 2016.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;/p&gt;</us-gaap:EarningsPerSharePolicyTextBlock>
    <us-gaap:FairValueMeasurementPolicyPolicyTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;We do not use derivative instruments for hedging&#13;of market risks or for trading or speculative purposes. We carried no assets or liabilities that are measured on a recurring basis&#13;at fair value at December 31, 2019 or March&amp;#160;31, 2019.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:FairValueMeasurementPolicyPolicyTextBlock>
    <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Except as described below, there have been no&#13;recent accounting pronouncements or changes in accounting pronouncements during the nine months ended December 31, 2019, as compared&#13;to the recent accounting pronouncements described in our Form 10-K for our fiscal year ended March 31, 2019, that are of significance&#13;or potential significance to us.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In February 2016, the FASB issued ASU No.&amp;#160;2016-02,&amp;#160;&lt;i&gt;Leases&lt;/i&gt;,&#13;which replaced the existing guidance in ASC 840, &amp;#8220;Leases&amp;#8221;, and in July 2018, the FASB issued ASU No. 2018-11,&amp;#160;&lt;i&gt;Leases&#13;(Topic 842):&lt;/i&gt; Targeted&amp;#160;Improvements (together, &lt;i&gt;ASC 842&lt;/i&gt;). The new leasing standards set out the principles for the&#13;recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e. lessees and lessors). The&#13;new standards require lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle&#13;of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease&#13;expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease, respectively.&#13;A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months&#13;regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to the prior guidance&#13;for operating leases. We adopted the standards on the required effective date of April 1, 2019 and did not restate lease expense&#13;or lease-related assets or liabilities reported in prior comparative periods.&amp;#160;Presentation of our financing lease for office&#13;equipment in the consolidated balance sheet is generally consistent with capitalized lease presentation under the prior lease accounting&#13;guidance. Presentation of leases within the consolidated statements of operations and consolidated statements of cash flows is&#13;generally consistent with the prior lease accounting guidance. We elected the package of practical expedients permitted under the&#13;transition guidance and, accordingly, the adoption of ASC 842 did not change the prior classification of any of our leases.&amp;#160;We&#13;elected not to record a right-of-use asset or a lease liability on the balance sheet for leases with a term of 12 months or less&#13;and will recognize the associated lease payments in the consolidated statements of operations over the lease term.&amp;#160;On the&#13;April 1, 2019 adoption date, we recognized approximately $4.3 million as total lease liabilities and $3.9 million as total right-of-use&#13;assets in our Condensed Consolidated Balance Sheet and derecognized a deferred rent liability of approximately $0.4 million attributable&#13;to the operating lease of our primary office and laboratory facilities recorded in accordance with prior guidance.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
    <us-gaap:DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock contextRef="From2019-04-01to2019-12-31">&lt;table cellspacing="0" cellpadding="0" style="font: 8pt Times New Roman, Times, Serif; width: 100%"&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;Three Months Ended December 31,&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="6" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;Nine Months Ended December 31,&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2019&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2018&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2019&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="border-bottom: black 1pt solid; text-align: center; font-size: 8pt"&gt;&lt;b&gt;&amp;#160;2018&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="text-align: center; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="width: 50%; font-size: 8pt"&gt;&amp;#160;Research and development expense&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;502,500&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;274,900&lt;/td&gt;&#13;    &lt;td style="width: 2%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;1,060,600&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="width: 9%; text-align: right; font-size: 8pt"&gt;955,600&lt;/td&gt;&#13;    &lt;td style="width: 2%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;General and administrative expense&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;1,129,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;459,800&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;2,028,100&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt solid; text-align: right; font-size: 8pt"&gt;1,564,100&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 1.5pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; font-size: 8pt"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;Total stock-based compensation expense&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;1,632,200&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;734,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;3,088,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; font-size: 8pt"&gt;$&lt;/td&gt;&#13;    &lt;td style="border-bottom: black 1pt double; text-align: right; font-size: 8pt"&gt;2,519,700&lt;/td&gt;&#13;    &lt;td style="padding-bottom: 3pt; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;</us-gaap:DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock>
    <VTGN:FairValueAssumptionsTableTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;In May 2019, the Compensation Committee of our&#13;Board of Directors (the &lt;i&gt;Board&lt;/i&gt;) approved the grant of options from our 2016 Amended and Restated Stock Incentive Plan (the&#13;&lt;i&gt;2016 Plan&lt;/i&gt;) to purchase an aggregate of 1,220,000 shares of our common stock at a then above-market exercise price of $1.00&#13;per share to the independent members of our Board, our officers and employees and certain consultants. The options vested 25% upon&#13;grant with the remaining shares vesting ratably over three years for independent directors, officers and employees, and over two&#13;years for consultants. We valued the options granted in May 2019 using the Black-Scholes Option Pricing Model and the following&#13;weighted average assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: justify; padding-bottom: 1pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center; border-bottom: Black 1pt solid"&gt;May 2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 87%; font-size: 8pt; text-align: justify"&gt;Market price per share at grant date&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.80&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2.12&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Expected term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.53&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;85.90&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,220,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold"&gt;Fair Value per share&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: right"&gt;0.54&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Additionally, in May 2019, the Compensation&#13;Committee approved, subject to subsequent stockholder approval at our 2019 Annual Meeting of Stockholders (&lt;i&gt;Annual Meeting&lt;/i&gt;)&#13;held in September 2019, the 2019 Omnibus Equity Incentive Plan (the &lt;i&gt;2019 Plan&lt;/i&gt;) and designated 7.5 million shares of our&#13;authorized common stock to be reserved thereunder. Further, in May 2019, the Compensation Committee granted options pursuant to&#13;the 2019 Plan to one of our officers to purchase 170,000 shares of our common stock at a then above-market exercise price of $1.00&#13;per share, which grant was contingent upon the approval of the 2019 Plan by our stockholders. Our stockholders approved the 2019&#13;Plan at our Annual Meeting and ratified the contingent grant. The option vested 25% upon approval of the 2019 Plan and the remaining&#13;shares vest ratably over three years. We valued the option using the Black-Scholes Option Pricing Model and the following assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: justify; padding-bottom: 1pt"&gt;Assumption:&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center; border-bottom: Black 1pt solid"&gt;September 2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 87%; font-size: 8pt; text-align: justify"&gt;Market price per share at grant date&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.84&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.45&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Expected term in years&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.58&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;86.04&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;170,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold"&gt;Fair Value per share&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: right"&gt;0.56&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;Upon approval of the 2019 Plan by our stockholders,&#13;no further option or other equity awards were permitted from our 2016 Plan and all remaining authorized shares of our common stock&#13;available for issuance under the 2016 Plan, 1,388,412 shares, became available for issuance under the 2019 Plan.&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;During the quarter ended December 31, 2019,&#13;we granted options from our 2019 Plan to the independent members of our Board, our officers and employees and certain consultants&#13;to purchase an aggregate of 1,990,000 shares of our common stock at exercise prices ranging from $0.50 to $1.41 per share. Options&#13;granted to Board members, officers, employees and most consultants were vested 25% at grant with the remaining options vesting&#13;ratably over the following 24 months. In the case of options granted to certain consultants, the options were vested 25% at grant&#13;but the remaining vesting period was less than 24 months to coincide with contractual terms. We valued the options using the Black-Scholes&#13;Option Pricing Model and the following assumptions:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td colspan="12" style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;Options Granted on&lt;/b&gt;&amp;#160; &amp;#160; &amp;#160;&amp;#160; &amp;#160; &amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;October 21, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;November 7, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;December 4, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; font-weight: bold; text-align: right"&gt;&lt;b&gt;&amp;#160;December 15, 2019&lt;/b&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;(weighted average)&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 48%; font-size: 8pt"&gt;Exercise price&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;1.41&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;1.20&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.50&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;0.70&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Market price on date of grant&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.41&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.01&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.44&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.70&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Risk-free interest rate&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.62&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.74&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.60&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.66&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Expected term (years)&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.39&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.06&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Volatility&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;87.52&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.02&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.28&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;88.44&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;Expected dividend yield&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Fair value per share at grant date&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.99&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.67&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.30&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.49&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;Number of shares&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,575,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;65,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;250,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;100,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</VTGN:FairValueAssumptionsTableTextBlock>
    <us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="7" style="font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;As of December 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2018&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; text-align: left"&gt;Series A Preferred stock issued and outstanding (1)&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;750,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;750,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Series B Preferred stock issued and outstanding (2)&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;1,160,240&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;1,160,240&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Series C Preferred stock issued and outstanding (3)&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2,318,012&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2,318,012&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Outstanding options under the Company's Amended and Restated 2016 (formerly 2008) Stock Incentive Plan and 2019 Omnibus Equity Incentive Plan&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;9,928,088&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;6,410,338&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left; padding-bottom: 1pt"&gt;Outstanding warrants to purchase common stock&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;23,050,204&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;21,499,955&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;37,206,544&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;32,138,545&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="font: 8pt Times New Roman, Times, Serif; width: 100%"&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td style="width: 70%; font-size: 8pt"&gt;____________&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 14%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 14%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td colspan="5" style="font-size: 8pt"&gt;(1) Assumes exchange under the terms of the October 11, 2012 Note Exchange and&#13;    Purchase Agreement, as amended.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td colspan="5" style="font-size: 8pt"&gt;(2) Assumes exchange under the terms of the Certificate of Designation of the&#13;    Relative Rights and Preferences of the Series B 10% Convertible Preferred Stock, effective May 5, 2015; excludes common shares&#13;    issuable in payment of dividends on Series B Preferred upon conversion.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: top; font-size: 8pt"&gt;&#13;    &lt;td colspan="5" style="font-size: 8pt"&gt;(3) Assumes exchange under the terms of the Certificate of Designation of the&#13;    Relative Rights and Preferences of the Series C Convertible Preferred Stock, effective January 25, 2016.&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;p style="margin: 0pt; font-size: 8pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock>
    <us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;March 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; font-size: 8pt; text-align: left"&gt;&amp;#160;Clinical and nonclinical materials and contract services&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;121,000&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;5,900&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Fair value of securities issued for professional services&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#8212;&amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;105,900&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt"&gt;&amp;#160;Insurance&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;119,300&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;96,300&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Public offering filing fees and expenses&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;30,500&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;22,300&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 1pt"&gt;&amp;#160;Conferences, sponsorships and all other&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;48,200&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;20,500&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;319,000&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;250,900&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;</us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock>
    <us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock contextRef="From2019-04-01to2019-12-31">&lt;table cellspacing="0" cellpadding="0" style="font: 12pt Times New Roman, Times, Serif; width: 100%"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 78%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 11%"&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&amp;#160;December 31,&lt;/b&gt;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td style="width: 11%"&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&amp;#160;March 31,&lt;/b&gt;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&amp;#160;2019&lt;/b&gt;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;b&gt;&amp;#160;2019&lt;/b&gt;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&#13;    &lt;td&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&#13;        &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;clinical trial, development and related expenses&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$876,600&amp;#160;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$1,067,600&amp;#160;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;Accrued compensation&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;&amp;#160;-&amp;#160;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;&amp;#160;439,200&amp;#160;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;Accrued professional services&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;&amp;#160;66,800&amp;#160;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;&amp;#160;172,100&amp;#160;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: white"&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;All other&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;&amp;#160;7,900&amp;#160;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;&amp;#160;6,700&amp;#160;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom; background-color: #CCEEFF"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$951,300&amp;#160;&lt;/font&gt;&lt;/td&gt;&#13;    &lt;td&gt;&lt;font style="font-size: 8pt"&gt;&amp;#160;$1,685,600&amp;#160;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;</us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock>
    <VTGN:ScheduleOfShareBasedPaymentAwardWarrantsValuationAssumptionsTableTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Fall 2019 Private Placement&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify"&gt;Assumption:&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Additional Warrants&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 87%; text-align: justify"&gt;Market price per share&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;0.44&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;0.50&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Risk-free interest rate&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;1.59&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Contractual term in years&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;4.32&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;86.64&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 11pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Number of warrant shares&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;325,000&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-weight: bold"&gt;Weighted average fair value per share&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right"&gt;0.27&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;Winter 2019 Warrant Modification&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify"&gt;Assumption:&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Pre-modification&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Post-modification&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; text-align: justify"&gt;Market price per share&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;0.44&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;0.44&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;1.98&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;0.50&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Risk-free interest rate&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;1.58&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;1.58&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Remaining contractual term in years&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2.25&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;1.91&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;87.5&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;88.1&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 11pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Number of warrant shares&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;6,611,759&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;6,611,759&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify"&gt;Weighted average fair value per share&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right"&gt;0.08&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right"&gt;0.19&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&lt;i&gt;December 19, 2019 Warrant Modification&lt;/i&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify"&gt;Assumption:&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Pre-modification&lt;/b&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&amp;#160;&lt;/p&gt;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;Post-modification&lt;/b&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; text-align: justify"&gt;Market price per share&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;0.805&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;0.805&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Exercise price per share&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;7.00&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;0.805&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Risk-free interest rate&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;1.57&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;1.65&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Remaining contractual term in years&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;0.58&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;3.034&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Volatility&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;98.7&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;84.9&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Dividend rate&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;0.0&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 11pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: justify"&gt;Number of warrant shares&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;80,431&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;80.431&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-weight: bold; text-align: justify"&gt;Weighted average fair value per share&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right"&gt;0.00&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-weight: bold; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-weight: bold; text-align: right"&gt;.044&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt/normal Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;p style="font: 11pt/107% Calibri, Helvetica, Sans-Serif; margin: 0 0 8pt"&gt;&amp;#160;&lt;/p&gt;</VTGN:ScheduleOfShareBasedPaymentAwardWarrantsValuationAssumptionsTableTextBlock>
    <us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="margin: 0pt"&gt;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Warrants&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Warrants&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Exercise&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Outstanding at&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Exercisable at&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Price&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;Expiration&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;per Share&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; border-bottom: Black 1pt solid; text-align: center"&gt;&amp;#160;&lt;b&gt;Date&lt;/b&gt;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: center"&gt;&lt;b&gt;2019&lt;/b&gt;&amp;#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 23%; font-size: 8pt; text-align: right"&gt;0.50&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 22%; font-size: 8pt; text-align: right"&gt;5/20/2020 to 3/31/2024&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 22%; font-size: 8pt; text-align: right"&gt;8,116,759&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 22%; font-size: 8pt; text-align: right"&gt;7,791,759&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;0.805&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;12/31/2022&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;80,431&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;80,431&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.50&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;12/13/2022&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;9,596,200&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;9,596,200&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1.82&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;3/7/2023&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,388,931&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,388,931&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;3.51&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;12/31/2021&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;50,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;50,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5.30&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;5/16/2021&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2,705,883&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;2,705,883&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;7.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1/11/2020 to 3/3/2023&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,092,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1,092,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;10.00&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;1/11/2020&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;20,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;20,000&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 1pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;23,050,204&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;22,725,204&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&#13;&#13;&lt;p style="margin: 0pt"&gt;&lt;/p&gt;</us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock>
    <us-gaap:OperatingLeasesOfLesseeDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;&amp;#160;As&amp;#160;of&amp;#160;&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;December 31, 2019&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-style: italic"&gt;Assets&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 87%; text-align: left"&gt;Right of use asset &amp;#8211; operating lease&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;3,665,600&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-style: italic"&gt;Liabilities&lt;/td&gt;&lt;td style="font-size: 12pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 12pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Current operating lease obligation&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;301,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Non-current operating lease obligation&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;3,798,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;Total operating lease liability&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;4,099,800&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;</us-gaap:OperatingLeasesOfLesseeDisclosureTextBlock>
    <us-gaap:LeaseCostTableTextBlock contextRef="From2019-04-01to2019-12-31">&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt; text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;For&amp;#160;the&amp;#160;Three&amp;#160;Months&amp;#160;Ended&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/p&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;For&amp;#160;the&amp;#160;Nine&amp;#160;Months&amp;#160;Ended&lt;/b&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 12pt; text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;December 31, 2019&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;b&gt;&amp;#160;&lt;/b&gt;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin-top: 0; text-align: center; margin-bottom: 0"&gt;&lt;b&gt;December 31, 2019&lt;/b&gt;&lt;/p&gt; &lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; text-align: left"&gt;Operating lease cost&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;203,100&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; text-align: right"&gt;615,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;</us-gaap:LeaseCostTableTextBlock>
    <us-gaap:ScheduleOfRentExpenseTableTextBlock contextRef="From2019-04-01to2019-12-31">&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 8pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td colspan="3" style="font-weight: bold; text-align: left"&gt;Fiscal Years Ending March 31,&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 48%; text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;2020 (remaining three months)&lt;/font&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 47%; text-align: right"&gt;157,800&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2021&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;645,800&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2022&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;668,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2023&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;726,000&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;2024&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;766,000&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Thereafter&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;2,720,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Total lease expense&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;5,684,400&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Less imputed interest&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;(1,584,600&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;font style="font-size: 8pt"&gt;Present value of operating lease liabilities&lt;/font&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;4,099,800&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;</us-gaap:ScheduleOfRentExpenseTableTextBlock>
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    <VTGN:ExpirateDateRange contextRef="From2019-04-01to2019-12-31_custom_Warrant2Member">12/31/2022</VTGN:ExpirateDateRange>
    <VTGN:ExpirateDateRange contextRef="From2019-04-01to2019-12-31_custom_Warrant3Member">12/13/2022</VTGN:ExpirateDateRange>
    <VTGN:ExpirateDateRange contextRef="From2019-04-01to2019-12-31_custom_Warrant4Member">3/7/2023</VTGN:ExpirateDateRange>
    <VTGN:ExpirateDateRange contextRef="From2019-04-01to2019-12-31_custom_Warrant5Member">12/31/2021</VTGN:ExpirateDateRange>
    <VTGN:ExpirateDateRange contextRef="From2019-04-01to2019-12-31_custom_Warrant6Member">5/16/2021</VTGN:ExpirateDateRange>
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    <VTGN:ExpirateDateRange contextRef="From2019-04-01to2019-12-31_custom_Warrant8Member">1/11/2020</VTGN:ExpirateDateRange>
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    <us-gaap:ClassOfWarrantOrRightOutstanding contextRef="AsOf2019-12-31_custom_Warrant2Member" unitRef="Shares" decimals="INF">80431</us-gaap:ClassOfWarrantOrRightOutstanding>
    <us-gaap:ClassOfWarrantOrRightOutstanding contextRef="AsOf2019-12-31_custom_Warrant3Member" unitRef="Shares" decimals="INF">9596200</us-gaap:ClassOfWarrantOrRightOutstanding>
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    <us-gaap:ClassOfWarrantOrRightOutstanding contextRef="AsOf2019-12-31_custom_Warrant5Member" unitRef="Shares" decimals="INF">50000</us-gaap:ClassOfWarrantOrRightOutstanding>
    <us-gaap:ClassOfWarrantOrRightOutstanding contextRef="AsOf2019-12-31_custom_Warrant6Member" unitRef="Shares" decimals="INF">2705883</us-gaap:ClassOfWarrantOrRightOutstanding>
    <us-gaap:ClassOfWarrantOrRightOutstanding contextRef="AsOf2019-12-31_custom_Warrant7Member" unitRef="Shares" decimals="INF">1092000</us-gaap:ClassOfWarrantOrRightOutstanding>
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    <VTGN:ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber contextRef="AsOf2019-12-31_custom_Warrant7Member" unitRef="Shares" decimals="INF">1092000</VTGN:ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantsExercisableNumber>
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    <us-gaap:AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;Accrued expenses are composed of the following at December 31, 2019&#13;and March 31, 2019:&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;March 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Accrued expenses for AV-101, PH94B, and PH10&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; font-size: 8pt; text-align: left"&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;clinical trial, development and related expenses&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;876,600&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;1,067,600&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Accrued compensation&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#8212;&amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;439,200&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Accrued professional services&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;66,800&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;172,100&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 1pt"&gt;&amp;#160;All other&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;7,900&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;6,700&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;951,300&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;1,685,600&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;</us-gaap:AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock>
    <us-gaap:PropertyPlantAndEquipmentTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 12pt Times New Roman, Times, Serif"&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;December 31,&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center"&gt;March 31,&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;td style="font-size: 8pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="font-size: 8pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2019&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="3" style="text-align: center"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Accrued expenses for AV-101, PH94B, and PH10&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&amp;#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="width: 74%; font-size: 8pt; text-align: left"&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;clinical trial, development and related expenses&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;876,600&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 10%; font-size: 8pt; text-align: right"&gt;1,067,600&lt;/td&gt;&lt;td style="width: 1%; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Accrued compensation&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;&amp;#8212;&amp;#160;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;439,200&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;Accrued professional services&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;66,800&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: right"&gt;172,100&lt;/td&gt;&lt;td style="font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="font-size: 8pt; text-align: left; padding-bottom: 1pt"&gt;&amp;#160;All other&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;7,900&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 1pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1pt solid; font-size: 8pt; text-align: right"&gt;6,700&lt;/td&gt;&lt;td style="padding-bottom: 1pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr style="vertical-align: bottom"&gt;&#13;    &lt;td style="padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;951,300&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;td style="font-size: 8pt; padding-bottom: 2.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; font-size: 8pt; text-align: right"&gt;1,685,600&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; font-size: 8pt; text-align: left"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;</us-gaap:PropertyPlantAndEquipmentTextBlock>
    <us-gaap:ScheduleOfDebtTableTextBlock contextRef="From2019-04-01to2019-12-31">&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0"&gt;&lt;/p&gt;&#13;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;&#13;&#13;&lt;table cellspacing="0" cellpadding="0" style="width: 100%"&gt;&#13;&lt;tr&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; padding-bottom: 1.5pt; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="vertical-align: bottom; border-bottom: black 1pt solid; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;&lt;b&gt;December 31, 2019&lt;/b&gt; &amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; padding-bottom: 1.5pt; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; padding-bottom: 1.5pt; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="10" style="vertical-align: bottom; border-bottom: black 1pt solid; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;&lt;b&gt;March 31, 2019&lt;/b&gt; &amp;#160; &amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; padding-bottom: 1.5pt; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr&gt;&#13;    &lt;td style="vertical-align: top; width: 39%; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; width: 1%; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; width: 10%; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Principal&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; width: 9%; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Accrued&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; width: 9%; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; width: 3%; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; width: 10%; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Principal&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; width: 9%; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Accrued&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; width: 10%; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 0%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 0%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 0%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 3%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 0%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 0%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="width: 1%"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: black 1pt solid; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Balance&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: black 1pt solid; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Interest&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: black 1pt solid; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Total&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: black 1pt solid; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Balance&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: black 1pt solid; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Interest&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td colspan="2" style="vertical-align: bottom; border-bottom: black 1pt solid; font: 12pt Times New Roman, Times, Serif; text-align: center"&gt;Total&lt;/td&gt;&#13;    &lt;td style="vertical-align: bottom; font: 12pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;7.75% and 7.15% Notes payable&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;tr&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;to insurance premium financing company (current)&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif; text-align: right"&gt;&amp;#160;$ 70,500&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif; text-align: right"&gt;&amp;#160;$ -&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif; text-align: right"&gt;&amp;#160;$ 70,500&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif"&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif; text-align: right"&gt;&amp;#160;$ 57,300&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif; text-align: right"&gt;&amp;#160;$ -&lt;/td&gt;&#13;    &lt;td style="vertical-align: top; font: 12pt Times New Roman, Times, Serif; text-align: right"&gt;&amp;#160;$ 57,300&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&#13;    &lt;td&gt;&amp;#160;&lt;/td&gt;&lt;/tr&gt;&#13;&lt;/table&gt;&#13;&lt;p style="font: 8pt Times New Roman, Times, Serif; margin: 0; text-align: justify"&gt;&amp;#160;&lt;/p&gt;</us-gaap:ScheduleOfDebtTableTextBlock>
    <dei:EntityInteractiveDataCurrent contextRef="From2019-04-01to2019-12-31">Yes</dei:EntityInteractiveDataCurrent>
    <dei:EntityIncorporationStateCountryCode contextRef="From2019-04-01to2019-12-31">NV</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber contextRef="From2019-04-01to2019-12-31">001-37761</dei:EntityFileNumber>
    <dei:Security12bTitle contextRef="From2019-04-01to2019-12-31">Common Stock, par value $0.001 per share</dei:Security12bTitle>
    <dei:TradingSymbol contextRef="From2019-04-01to2019-12-31">VTGN</dei:TradingSymbol>
    <dei:SecurityExchangeName contextRef="From2019-04-01to2019-12-31">NASDAQ</dei:SecurityExchangeName>
</xbrli:xbrl>
