Series A Preferred Stock Equity Components [Axis] Common Stock Additional Paid-In Capital Treasury Stock Notes Receivable from Sale of Stock Deficit accumulated during the development stage Preferred Stock Series B Preferred Stock Series B-1 Preferred Stock Series C Preferred Stock Document And Entity Information Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Is Entity a Well-known Seasoned Issuer? Is Entity a Voluntary Filer? Is Entity's Reporting Status Current? Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Year Focus Statement of Financial Position [Abstract] ASSETS Current assets: Cash and cash equivalents Unbilled contract payments receivable Prepaid expenses Total current assets Property and equipment, net Security deposits and other assets Total assets LIABILITIES, PREFERRED STOCK AND STOCKHOLDERS' DEFICIT Current liabilities: Accounts payable Accrued expenses Notes payable and accrued interest Notes payable and accrued interest to related parties Put option and note term extension option liabilities Capital lease obligations Non-interest bearing promissory notes, net, including $525,000 to related parties Deferred revenues Convertible promissory notes, including $947,400 to related parties at March 31, 2011 - current portion Accrued interest on convertible promissory notes Total current liabilities. Non-current liabilities: Notes payable and accrued interest. Notes payable and accrued interest to related parties. Convertible promissory notes, net of current portion Accrued interest on convertible promissory notes. Accrued officers' compensation Capital lease obligations. Accounts payable. Warrant liability Total non-current liabilities Total liabilities Commitments and contingencies Preferred stock, no par value; no shares authorized at March 31, 2012; 20,000,000 shares authorized at March 31, 2011; no shares issued and outstanding at March 31, 2012; 2,884,655 shares issued and outstanding at March 31, 2011 Stockholders' deficit: Preferred stock, $0.001 par value; 10,000,000 shares authorized at March 31, 2012; no shares authorized at March 31, 2011; 437,055 Series A shares issued and outstanding at March 31, 2012; no shares issued and outstanding at March 31, 2011 Common stock, $0.001 par value at March 31, 2012 and 2011; 200,000,000 and 400,000,000 shares authorized at March 31, 2012 and 2011, respectively; 18,704,267 and 5,241,110 shares issued at March 31, 2012 and 2011, respectively Additional paid-in capital Treasury stock, at cost, 2,083,858 shares of common stock held at March 31, 2012; no shares held at March 31, 2011 Notes receivable from sale of common stock to unrelated parties at March 31, 2012 and upon exercise of options and warrants by related parties at March 31, 2011 Deficit accumulated during development stage Total stockholders' deficit Total liabilities, preferred stock and stockholders' deficit Non-interest bearing promissory notes Convertible promissory notes Preferred Stock, No Par Value Preferred Stock, Shares Authorized Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Preferred Stock, per value Preferred Stock, Authorized PreferredStockSeriesASharesIssued PreferredStockSeriesASharesOutstanding Common Stock, Par Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Outstanding Treasury Stock, Shares Income Statement [Abstract] Revenues: Grant revenue Collaboration revenue Other Total revenues Operating expenses: Research and development Acquired in-process research and development General and administrative Total operating expenses Loss from operations Other expenses, net: Interest expense, net Change in put and note extension option and warrant liabilities Loss on early extinguishment of debt Other income Loss before income taxes Income taxes Net loss Basic and diluted net loss per common share Weighted average shares used in computing basic and diluted net loss per common share Statement of Cash Flows [Abstract] Cash flows from operating activities: Net loss Adjustments to reconcile net loss to net cash used in operating activities: Depreciation and amortization Amortization of discounts on 7%, 7.5% and 10% notes Amortization of discounts on Platinum notes Amortization of discounts on August 2010 short-term notes Amortization of discounts on February 2012 12% convertible notes Change in put and note term extension option and warrant liabilities Fair value of Series C preferred stock, common stock, and warrants granted for services prior to the Merger Stock-based compensation Loss on early extinguishment of debt Expense related to modification of warrants Fair value of common stock granted for services following the Merger Fair value of warrants granted for services following the Merger Fair value of additional warrants granted under Discounted Warrant Exercise Program Fair value of common stock issued for note term modification Consulting services by related parties settled by issuing promissory notes Amortization of imputed discount on non-interest bearing notes Gain on sale of assets Changes in operating assets and liabilities: Unbilled contract payments receivable Prepaid expenses and other current assets Security deposits and other assets Accounts payable and accrued expenses Deferred revenues. Net cash used in operating activities Cash flows from investing activities: Purchases of equipment, net Net cash used in investing activities Cash flows from financing activities: Net proceeds from issuance of common stock and warrants, including units Proceeds from exercise of warrants under Discounted Warrant Exercise Program Net proceeds from issuance of preferred stock and warrants Proceeds from issuance of notes under line of credit Proceeds from issuance of 7% note payable to founding stockholder Net proceeds from issuance of 7% convertible notes Net proceeds from issuance of 10% convertible notes and warrants Net proceeds from issuance of Platinum notes and warrants Net proceeds from issuance of 2008/2010 notes and warrants Net proceeds from issuance of 2006/2007 notes and warrants Proceeds from issuance of 7% notes payable Net proceeds from issuance of August 2010 short-term notes and warrants Net proceeds from issuance of February 2012 12% convertible notes and warrants Repayment of capital lease obligations Repayment of notes Net cash provided by financing activities Net increase in cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental disclosure of cash flow activities: Cash paid for interest Cash paid for income taxes Supplemental disclosure of noncash activities: Forgiveness of accrued compensation and accrued interest payable to officers transferred to equity Exercise of warrants and options in exchange for debt cancellation Settlement of accrued and prepaid interest by issuance of Series C Preferred Stock Conversion of 10% notes payable, net of discount, and related accrued interest into Series C Preferred stock Issuance of Series B-1 Preferred stock for acquired in-process research and development Conversion of 7% notes payable, net of discount, and related accrued interest into Series B Preferred stock Conversion of accounts payable into convertible promissory notes Conversion of accounts payable into note payable Conversion of accounts payable into common stock Conversion of accrued interest on convertible promissory notes into common stock Notes receivable from sale of common stock to related parties upon exercise of options and warrants Capital lease obligations Recognition of put option and note term extension option liabilities upon issuance of Platinum Notes Incremental fair value of put option and note term extension option liabilities from debt modifications Incremental fair value of note conversion option from debt modification Incremental fair value of warrant from debt modifications Recognition of warrant liability upon adoption of new accounting standard Fair value of warrants issued with August 2010 short term notes Note Discount upon issuance of August 2010 short-term notes Fair value of warrants issued with February 2012 12% convertible notes Note Discount upon issuance of February 2012 12% convertible notes Statement [Table] Statement [Line Items] Beginning Balance, Amount Beginning Balance, Shares Issuance of Series A preferred stock at $2.302 per share for cash, net of issuance costs of $24,000, Amount Issuance of Series A preferred stock at $2.302 per share for cash, net of issuance costs of $24,000, Shares Issuance of Series A preferred stock at $2.302 per share for cash, net of issuance costs of $5,500, Amount Issuance of Series A preferred stock at $2.302 per share for cash, net of issuance costs of $5,500, Shares Issuance of Series B preferred stock at $5.545 per share for cash, including conversion of $575,000 face value of 7% convertible notes plus accrued interest of $3,800, net of unamortized discount of $70,800 and issuance costs of $39,800, Amount Issuance of Series B preferred stock at $5.545 per share for cash, including conversion of $575,000 face value of 7% convertible notes plus accrued interest of $3,800, net of unamortized discount of $70,800 and issuance costs of $39,800, Shares Issuance of Series B preferred stock at $5.545 per share for cash, net of issuance costs of $97,200, Amount Issuance of Series B preferred stock at $5.545 per share for cash, net of issuance costs of $97,200, Shares