Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Common Stock [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Balance at Dec. 31, 2013	$ 227,513	$ (219,441)	$ (2,236)	$ 5,836
Balance( in shares) at Dec. 31, 2013	2,832,014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation, employees and directors	$ 729	0	0	729
Share-based compensation, employees and directors (in shares)	281,620
Stock and warrant offering proceeds, net	$ 13,296	0	0	13,296
Stock and warrant offering proceeds, net (in shares)	2,786,781
Warrant issued in private placement offering	$ 430	0	0	430
Issuance of shares to former warrants holders and note holder	$ 0	0	0	0
Issuance of shares to former warrant holders and a note holder (in shares)	1,688,985
Debt conversion	$ 10,109	0	0	10,109
Debt conversion (in shares)	1,724,461
Change in classification of warrants to equity from liability	$ 8,902	0	0	8,902
Other	$ 320	0	0	320
Other (in shares)	69,710
Foreign currency translation	$ 0	0	(921)	(921)
Net loss	0	(23,029)	0	(23,029)
Balance at Dec. 31, 2014	$ 261,299	(242,470)	(3,157)	$ 15,672
Balance( in shares) at Dec. 31, 2014	9,383,571			9,383,571
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation, employees and directors	$ 857	0	0	$ 857
Share-based compensation, employees and directors (in shares)	139,047
Warrants issued to subordinated debt holders	$ 699	0	0	699
Other	$ 40	0	0	40
Other (in shares)	14,797
Foreign currency translation	$ 0	0	(1,732)	(1,732)
Net loss	0	(8,268)	0	(8,268)
Balance at Dec. 31, 2015	$ 262,895	$ (250,738)	$ (4,889)	$ 7,268
Balance( in shares) at Dec. 31, 2015	9,537,415			9,537,415