CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue:
License and milestone	$ 80		$ 480
Operating expenses:
Research and development	90	$ 173	574	$ 268
General and administrative	1,022	1,434	3,275	2,573
Total operating expenses	1,112	1,607	3,849	2,841
Loss from operations	(1,032)	(1,607)	(3,369)	(2,841)
Other income (expense):
Interest and other expense				(1,007)
Change in fair value liability for price adjustable warrants	2,485	(5,487)	6,128	(6,256)
Change in fair value of stock reserved for issuance to settle liabilities		(48)		(2,503)
Gain (loss) on foreign exchange		(1)		1
Gain on debt extinguishment		1		5
Gain on settled liabilities	6	19	18	321
Total other income (expense), net	2,491	(5,516)	6,146	(9,439)
Net income (loss)	1,459	(7,123)	2,777	(12,280)
Net income (loss) applicable to common stockholders	$ 769	$ (7,123)	$ 2,087	$ (18,280)
Net income (loss) per common share
Basic (in dollars per share)	$ 0.03	$ (0.28)	$ 0.08	$ (0.75)
Diluted (in dollars per share)	$ (0.06)	$ (0.28)	$ (0.12)	$ (0.75)
Shares used in computing net income (loss) per share
Basic (in shares)	26,462	25,668	26,047	24,248
Diluted (in shares)	30,939	25,668	33,484	24,248
Series C Preferred Stock
Other income (expense):
Deemed dividend related to discount on beneficial conversion feature in convertible preferred shares				$ (6,000)
Series D Preferred Stock
Other income (expense):
Deemed dividend related to discount on beneficial conversion feature in convertible preferred shares	$ (690)		$ (690)