CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 3,235	$ 8,688
Restricted cash	916	0
Prepaid expenses and other current assets	304	66
Total current assets	4,455	8,754
Fixed assets, net	2	3
Non-current restricted cash	916	0
Total assets	5,373	8,757
Current liabilities
Accounts payable	1,657	1,880
Accrued expenses	1,179	779
Total current liabilities	2,836	2,659
Long-term liabilities:
Accrued severance	916	0
Total liabilities	3,752	2,659
Commitments & Contingencies (note 6)
Stockholders' Equity
Undesignated Preferred Stock, $.001 par value, 5,000,000 shares authorized, none issued and outstanding	0	0
Common Stock, $.001 par value, 75,000,000 shares authorized, 26,797,769 and 25,938,602 shares issued, respectively; 26,685,419 and 25,826,252 shares outstanding, respectively	27	26
Additional paid-in capital	328,413	326,981
Cost of treasury stock, 112,350 shares	(1,380)	(1,380)
Accumulated deficit	(325,439)	(319,529)
Total stockholders' equity	1,621	6,098
Total liabilities and stockholders' equity	$ 5,373	$ 8,757