Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 5,167	$ 27,285
Short-term investments	11,113
Prepaid expenses and other current assets	934	105
Total current assets	17,214	27,390
Property and equipment, net	14	30
Other assets	33	33
Total assets	17,261	27,453
Current liabilities:
Accounts payable	532	287
Accrued compensation and employee benefits	497	636
Accrued clinical trial expenses	46	918
Other accrued liabilities	410	262
Total current liabilities	1,485	2,103
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 15,000 shares authorized; No shares issued and outstanding
Common stock, $0.01 par value, 70,000 shares authorized; 26,545 shares issued and outstanding	265	265
Additional paid-in capital	290,521	289,894
Accumulated deficit	(275,010)	(264,809)
Total stockholders' equity	15,776	25,350
Total liabilities and stockholders' equity	$ 17,261	$ 27,453