Condensed Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash	$ 6,303	$ 9,972
Restricted cash	20	20
Prepaid expenses	220	582
Other current assets	86	73
Total current assets	6,629	10,647
Furniture and fixtures, equipment and leasehold improvements	644	643
Accumulated depreciation	(621)	(609)
Furniture and fixtures, equipment and leasehold improvements, net	23	34
License agreements, net of accumulated amortization of $1,285 and $1,211 at September 30, 2012 and December 31, 2011, respectively	215	289
Other assets		86
Total assets	6,867	11,056
Current liabilities:
Accounts payable	509	261
Accrued research and development	158	480
Accrued restructuring	111	653
Accrued other	473	865
Total current liabilities	1,251	2,259
Stockholders' equity
Common stock, $.01 par value, 100,000 and 300,000 shares authorized at September 30, 2012 and December 31, 2011, respectively; 19,764 and 15,177 shares issued and outstanding at September 30, 2012 and December 31, 2011, respectively	198	152
Additional paid-in capital	229,175	225,998
Accumulated deficit	(223,757)	(217,353)
Total stockholders' equity	5,616	8,797
Total liabilities and stockholders' equity	$ 6,867	$ 11,056