CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash	$ 37	$ 24
Prepaid expenses and other current assets	79	94
Total current assets	116	118
Property and equipment:
Laboratory equipment	29	29
Office furniture and other equipment	172	172
Property, Plant and Equipment, Gross, Total	201	201
Less accumulated depreciation and amortization	(125)	(123)
Property and equipment, net	76	78
Deposit and other non-current assets	34	16
Total assets	226	212
LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)
Accounts payable	3,855	2,219
Accounts payable, related party	1,005	1,589
Accrued expenses	2,560	2,185
Accrued expenses, related party	961	630
Notes payable	3,306	3,149
Note payable to related parties	2,067	2,056
Convertible notes payable, net	5,270	4,832
Convertible notes payable to related party, net	4,672	3,588
Embedded derivative liability	253	601
Liability for reclassified equity contracts	0	29,903
Total current liabilities	23,949	50,752
Long term liabilities:
Notes payable	200	200
Convertible notes payable, net	896	1,433
Total long term liabilities	1,096	1,633
Total liabilities	25,045	52,385
Stockholders' equity (deficit):
Preferred stock, $0.001 par value; 20,000,000 shares authorized and none issued and outstanding	0	0
Common stock, $0.001 par value; 150,000,000 and 450,000,000 shares authorized, and 149,345,623 and 159,278,036 shares issued and outstanding at December 31, 2011 and March 31, 2012, respectively	160	150
Additional paid-in capital	237,140	199,605
Deficit accumulated during the development stage	(261,929)	(251,778)
Cumulative translation adjustment	(190)	(150)
Total stockholders' equity (deficit)	(24,819)	(52,173)
Total liabilities and stockholders' equity (deficit)	$ 226	$ 212