Consolidated Balance Sheets (USD $)	Mar. 31, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 5,910,213	$ 8,995,571
Cash restricted pursuant to a vendor letter of credit	250,000	250,000
Accounts receivable		37,065
Stock subscriptions receivable		6,667
Prepaid expenses and other current assets	317,624	274,208
Total current assets	6,477,837	9,563,511
Property and Equipment, at cost:
Computer equipment	316,095	298,290
Office and laboratory equipment (including assets under capitalized leases)	665,372	624,817
Furniture and fixtures	186,837	186,837
Manufacturing equipment	160,435	156,435
Leasehold improvements	187,264	187,264
Property and equipment, at cost	1,516,003	1,453,643
Less-Accumulated depreciation and amortization	(1,145,454)	(1,135,912)
Net property and equipment (including assets under capitalized leases)	370,549	317,731
Other Assets:
Intangible assets, net of accumulated amortization	9,625,000	9,625,000
Deposits and other assets	10,816	20,565
Total other assets	9,635,816	9,645,565
Total assets	16,484,202	19,526,807
Current Liabilities:
Accounts payable	636,658	365,298
Deferred revenue	123,708	123,708
Current portion of notes payable and capital lease obligation, net of discounts	2,345	2,288
Derivative warrant liability	803,794	1,035,337
Accrued expenses and other liabilities	386,714	965,832
Total current liabilities	1,953,219	2,492,463
Notes Payable and capital lease obligation, net of current portion and discounts	3,280	3,888
Deferred revenue, net of current portion	30,940	61,867
Total liabilities	1,987,439	2,558,218
Convertible Preferred Stock:Series C, $0.01 par value, authorized 10,000 shares, issued and outstanding 9,974.185 shares at March 31, 2012 and December 31, 2011	100	100
Convertible Preferred Stock:Series D, $0.01 par value, authorized 3,600,000 shares, issued and outstanding 3,006,000 shares at March 31, 2012 and December 31, 2011 (preference in liquidation of $3,006,000 at March 31, 2012)	30,060	30,060
Common Stock, $0.01 par value, authorized 100,000,000 shares, issued and outstanding 38,836,022 and 38,543,944 shares at March 31, 2012 and December 31, 2011, respectively	388,363	385,442
Additional paid-in capital	98,634,017	98,116,327
Common stock subscribed for but not paid for or issued, 0 and 33,333 shares at March 31, 2012 and December 31, 2011, respectively		6,667
Accumulated deficit	(84,555,777)	(81,570,007)
Total stockholders' equity	14,496,763	16,968,589
Total liabilities and stockholders' equity	$ 16,484,202	$ 19,526,807