CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) - 9 months ended Sep. 30, 2015 - USD ($) $ in Thousands	Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Beginning balance at Dec. 31, 2014	$ 1	$ 6	$ 194,562	$ (182,293)	$ 0	$ 12,276
Beginning balance (in shares) at Dec. 31, 2014	11,787	6,037,232
Stock-based compensation	$ 0	$ 0	1,483	0	0	1,483
Conversion of convertible preferred stock	$ 0	$ 2	(2)	0	0	0
Conversion of convertible preferred stock (in shares)	(5,282)	2,059,455
Conversion of senior secured convertible debentures	$ 0	$ 2	4,591	0	0	4,593
Conversion of senior secured convertible debentures (in shares)	0	1,790,671
Discount on senior secured convertible debentures	$ 0	$ 0	27,300	0	0	27,300
Modification of warrants	0	0	(5,399)	0	0	(5,399)
Deemed dividend contribution to additional paid-in capital	0	0	2,962		0	2,962
Deemed dividend distribution from additional paid-in capital	0	0	(2,962)	0	0	(2,962)
Registration costs	0	0	(33)	0	0	(33)
Other comprehensive income	0	0	0	0	10	10
Net loss	0	0	0	(24,354)	0	(24,354)
Ending balance at Sep. 30, 2015	$ 1	$ 10	$ 222,502	$ 206,647	$ 10	$ 15,876
Ending balance (in shares) at Sep. 30, 2015	6,505	9,887,358