CONDENSED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 13,117	$ 13,778
Other current assets	532	758
Total current assets	13,649	14,536
Furniture and equipment, net	136	160
Total assets	13,785	14,696
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	144	77
Accrued compensation	10	13
Other accrued liabilities	2	29
Total current liabilities	156	119
Stockholders' Equity
Common Stock $.0005 par value; 100,000,000 shares authorized; 40,885,411 shares in 2012 and 40,775,411shares in 2011 issued and outstanding	20	20
Additional paid-in capital	189,102	189,074
Accumulated deficit ($147,731 at March 31, 2012 and $146,755 at December 31, 2011, accumulated during development stage period)	(175,493)	(174,517)
Total stockholders' equity	13,629	14,577
Total liabilities and stockholders' equity	$ 13,785	$ 14,696