CONDENSED BALANCE SHEETS (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 17,608	$ 24,387
Interest, income taxes and other current assets	209	643
Total current assets	17,817	25,030
Furniture and equipment, net	187	258
Total assets	18,004	25,288
LIABILITIES, POTENTIALLY REDEEMABLE EQUITY AND STOCKHOLDERS' EQUITY
Accounts payable	337	246
Accrued compensation	389	674
Accrued clinical and other accrued liabilities	38	236
Share-based payments liability	0	660
Total current liabilities	764	1,816
Potentially redeemable equity - See Note B	0	15,556
Stockholders' Equity
Common Stock $.0005 par value; 100,000,000 shares authorized; 40,775,411 shares in 2011 and 2010 issued and outstanding	20	20
Additional paid-in capital	189,048	188,258
Accumulated deficit ($144,066 at September 30, 2011 and $152,600 at December 31, 2010, accumulated during development stage period)	(171,828)	(180,362)
Total stockholders' equity	17,240	7,916
Total liabilities, potentially redeemable equity and stockholders' equity	$ 18,004	$ 25,288