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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 AND STOCKHOLDERS' DEFICIT Current liabilities: Accounts payable Accrued expenses Notes payable and accrued interest Notes payable and accrued interest to related parties Capital lease obligations Total current liabilities. Non-current liabilities: Senior secured convertible promissory notes, net of discount of $1,947,100 at June 30, 2013 and $1,963,100 at March 31, 2013 and accrued interest Notes payable, net of discount of $1,075,200 at June 30, 2013 and $1,142,600 at March 31, 2013 Notes payable to related parties, net of discount of $136,500 at June 30, 2013 and $147,200 at March 31, 2013 and accrued interest Warrant liability Capital lease obligations Total non-current liabilities Total liabilities Commitments and contingencies Stockholders' deficit: Preferred stock, $0.001 par value; 10,000,000 shares, including 500,000 Series A shares, authorized at June 30, 2013 and March 31, 2013; 500,000 Series A shares issued and outstanding at June 30, 2013 and March 31, 2013, respectively Common stock, $0.001 par value; 200,000,000 shares authorized at June 30, 2013 and March 31, 2013; 23,937,631 and 23,480,169 shares issued at June 30, 2013 and March 31, 2013, respectively Additional paid-in capital Treasury stock, at cost, 2,713,308 shares of common stock held at June 30, 2013 and March 31, 2013 Notes receivable from sale of common stock Deficit accumulated during development stage Total stockholders' deficit Total liabilities and stockholders' deficit Senior secured convertible promissory notes, net of discount Notes payable, net of discount Notes payable to related parties, net of discount Stockholders deficit: Preferred Stock, par value Preferred Stock, Authorized PreferredStockSeriesASharesIssued PreferredStockSeriesASharesOutstanding Common Stock, Par Value Par Share Common Stock, Shares Authorized Common Stock, Shares, Issued 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 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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 Net proceeds from issuance of preferred stock and warrants Proceeds from exercise of modified 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 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share Schedule of antidilutive securities excluded from computation of earnings per share Fair Value Measurements Tables Fair value heirarchy for liabilities measured at fair value on a recurring basis Changes in Level 3 liabilities Prepaid Expenses Tables Prepaid Expenses Accrued Expenses Tables Accrued Expenses Convertible Promissory Notes And Other Notes Payable Tables Convertible Promissory Notes and Other Notes Payable Capital Stock Tables Black-Scholes Option Pricing Model Warrant exercises and grants History And Organization Details Textuals Outstanding shares acquired Basis Of Presentation And Going Concern Details Textuals Accumulated Deficit during its development stage Cash expenditure maximum Cash expenditure minimum Share purchase obligation Share purchase obligation cash consideration Initial closing initial share issuance Private placement proceeds Summary Of Significant Accounting Policies Details Numerator: less: change in FV of warrant liability attributable to 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