CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2014	$ 13,477	$ 6	$ 282	$ 283,691	$ (270,468)	$ (34)
Balance (in shares) at Dec. 31, 2014		575	28,167,408
Conversion of Class N preferred shares (Shares)		(6)	240
Issuance of common stock from restricted stock awards			$ 3	(3)
Issuance of common stock from restricted stock awards (shares)			300,000
Issuance of common stock from stock options awards (shares)	0
Stock-based compensation expense	$ 358			358
Net income (loss)	(10,421)				(10,421)
Foreign currency translation adjustments	(20)					(20)
Ending Balance at Dec. 31, 2015	3,394	$ 6	$ 285	284,046	(280,889)	(54)
Balance (in shares) at Dec. 31, 2015		569	28,467,648
Conversion of Class N preferred shares (Shares)		0
Issuance of common stock from stock options awards	$ 4			4
Issuance of common stock from stock options awards (shares)	40,000		40,000
Forfeiture of unvested common stock from restricted stock awards (shares)			(37,500)
Stock-based compensation expense	$ 99			99
Net income (loss)	14				14
Foreign currency translation adjustments	(17)					(17)
Ending Balance at Dec. 31, 2016	$ 3,494	$ 6	$ 285	$ 284,149	$ (280,875)	$ (71)
Balance (in shares) at Dec. 31, 2016		569	28,470,148