Consolidated Balance Sheets (USD $)	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 27,982	$ 16,528
Short-term investments	25,878	838,309
Restricted marketable securities		42,450
Prepaid expenses and other current assets	31,355	2,720
Total current assets	85,215	900,007
Property and equipment, net		1,186
Deferred charges	62,671	64,514
Total assets	147,886	965,707
Current liabilities:
Accounts payable and accrued expenses	1,726,506	2,278,398
Notes payable	6,460,000	6,410,000
Accrued interest on notes payable	1,142,225	919,526
Deferred revenue	73,730	73,730
Other current liabilities		60,126
Advances from related party	425,000	325,000
Total current liabilities	9,827,461	10,066,780
Contingent royalty	16,000,000	16,000,000
Deferred revenue, net of current portion	1,179,683	1,216,547
Other long-term liabilities	33,750	33,750
Total liabilities	27,040,894	27,317,077
Commitments and contingencies
Series F convertible redeemable preferred stock, $.01 par value; 200,000 shares designated; 12,000 shares issued and outstanding at June 30, 2013 and December 31, 2012, (liquidation preference of $300,000 at June 30, 2013)	379,857	369,501
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 June 30, 2013 and December 31, 2012, respectively
Common stock, $.01 par value; 80,000,000 shares authorized at June 30, 2013 and December 31, 2012; 30,635,720 issued and outstanding at June 30, 2013 and December 31, 2012	306,357	306,357
Additional paid-in capital	171,965,164	171,975,520
Accumulated other comprehensive loss	(32,935)	(309,204)
Deficit accumulated during development stage	(199,511,451)	(198,693,544)
Total stockholders' deficit	(27,272,865)	(26,720,871)
Total liabilities and stockholders' deficit	$ 147,886	$ 965,707