Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 28,499	$ 31,462
Restricted cash	2,016
Receivables	40	150
Prepaid and other current assets	1,438	3,634
Total current assets	31,993	35,246
Property and equipment, net	278	299
Other assets		81
Total assets	32,271	35,626
Current liabilities:
Accounts payable	956	1,789
Accrued clinical and cost of other studies	2,656	4,315
Accrued compensation	1,343	1,159
Deferred rent		37
Facility lease exit obligation		104
Other accrued liabilities	1,121	112
Total current liabilities	6,076	7,516
Deferred revenue - related party, non-current	5,000	5,000
Convertible debt, net of discount	2,172
Convertible debt - related party, net of discount	10,634
Total liabilities	23,882	12,516
Commitments and contingencies
Shareholders' equity:
Preferred stock, 5,000,000 shares authorized, none outstanding
Common stock, no par value; authorized shares: 35,045,765 at September 30, 2016 and 25,045,765 at December 31, 2015; issued and outstanding shares: 14,943,542 at September 30, 2016; 14,761,351 at December 31, 2015	438,871	428,591
Accumulated deficit	(430,482)	(405,481)
Total shareholders' equity	8,389	23,110
Total liabilities and shareholders' equity	$ 32,271	$ 35,626