Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 6,041	$ 3,535
Short-term investments	2,303	8,512
Prepaid clinical trial expenses	1,542	1,946
Other prepaid expenses and current assets	248	77
Total current assets	10,134	14,070
Property and equipment, net	8	11
Other assets	33	33
Total assets	10,175	14,114
Current liabilities:
Accounts payable	312	310
Accrued compensation and employee benefits	488	842
Accrued clinical trial expenses	62	64
Other accrued liabilities	531	398
Total current liabilities	1,393	1,614
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	290,938	290,698
Accumulated deficit	(282,421)	(278,463)
Total stockholders' equity	8,782	12,500
Total liabilities and stockholders' equity	$ 10,175	$ 14,114