Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash	$ 8,777	$ 4,946
Restricted cash	20	20
Prepaid expenses	172	135
Other current assets	129	142
Total current assets	9,098	5,243
Furniture and fixtures, equipment and leasehold improvements	365	370
Accumulated depreciation	(360)	(357)
Net furniture and fixtures, equipment and leasehold improvements	5	13
License agreements, net of accumulated amortization of $1,382 and $1,309 at September 30, 2013 and December 31, 2012, respectively	118	191
Total assets	9,221	5,447
Current liabilities:
Accounts payable	733	416
Accrued research and development	202	181
Accrued other	580	304
Total current liabilities	1,515	901
Commitments and contingencies
Stockholders' equity
Preferred stock, $.01 par value, 15,000 shares authorized; 6 and 0 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively
Common stock, $.01 par value, 70,000 shares authorized; 2,999 and 1,746 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	30	17
Additional paid-in capital	244,087	229,961
Accumulated deficit	(236,411)	(225,432)
Total stockholders' equity	7,706	4,546
Total liabilities and stockholders' equity	$ 9,221	$ 5,447