Consolidated Balance Sheets (USD $)	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 16,528	$ 135,843
Short-term investments	838,309	27,446
Restricted marketable securities	42,450
Prepaid expenses and other current assets	2,720	4,965
Total current assets	900,007	168,254
Property and equipment, net	1,186	2,475
Deferred charges	64,514
Total assets	965,707	170,729
Current liabilities:
Accounts payable and accrued expenses	2,278,398	2,210,229
Convertible notes payable		21,827,588
Notes payable	6,410,000	5,900,000
Accrued interest on notes payable	919,526	486,691
Other current liabilities	60,126
Advances from related party	325,000
Deferred revenue	73,730
Total current liabilities	10,066,780	30,424,508
Contingent royalty	16,000,000
Deferred revenue, net of current portion	1,216,547
Other long-term liabilities	33,750
Total liabilities	27,317,077	30,424,508
Commitments and contingencies (see note 13)
Series F convertible redeemable preferred stock, $.01 par value; 200,000 shares designated; 12,000 shares issued and outstanding at December 31, 2012 and 2011 (liquidation preference of $300,000 at December 31, 2012)	369,501	348,444
Stockholders' deficit:
Preferred stock, $.01 par value; 1,000,000 shares authorized; 25,000 shares designated Convertible Series A, 500,000 shares designated Convertible Series D and 800 shares designated Convertible Series E; no shares issued and outstanding at December 31, 2012 and 2011
Common stock, $.01 par value; 80,000,000 shares authorized at December 31, 2012 and 2011; 30,635,720 issued and outstanding at December 31, 2012 and 2011	306,357	306,357
Additional paid-in capital	171,975,520	166,170,855
Accumulated other comprehensive loss	(309,204)	(31,367)
Deficit accumulated during development stage	(198,693,544)	(197,048,068)
Total stockholders' deficit	(26,720,871)	(30,602,223)
Total liabilities and stockholders' deficit	$ 965,707	$ 170,729