CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Preferred Stock [Member] Series B Convertible Preferred Stock [Member]	Preferred Stock [Member] Series C Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Total	Series C Convertible Preferred Stock [Member]
Beginning balance at Dec. 31, 2016	$ 1		$ 2	$ 225,289	$ (210,575)	$ 2	$ 14,719
Beginning balance (in shares) at Dec. 31, 2016	6,000		2,166,898
Stock-based compensation	$ 0		$ 0	136	0	0	136
Conversion of senior secured convertible debentures	$ 0		$ 0	262	0	0	262
Conversion of senior secured convertible debentures (in shares)	0		70,000
Conversion of convertible preferred stock	$ (1)		$ 1	0	0	0	0
Conversion of convertible preferred stock (in shares)	(3,072)		239,500
Issuance of common stock for fractional shares in reverse stock split (in shares)			1,345
Issuance of convertible preferred stock in exchange for convertible debentures		$ 4	$ 0	25,906	0	0	25,910
Issuance of convertible preferred stock in exchange for convertible debentures (in shares)		40,482
Net loss	$ 0	$ 0	0	0	(17,111)	0	(17,111)	$ (3,276)
Ending balance at Sep. 30, 2017	$ 0	$ 4	$ 3	$ 251,594	$ (227,686)	$ 2	$ 23,917
Ending balance (in shares) at Sep. 30, 2017	2,928	40,482	2,477,743