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, 2015	$ 3,394	$ 6	$ 285	$ 284,046	$ (280,889)	$ (54)
Balance (in shares) at Dec. 31, 2015		569	28,467,648
Issuance of common stock from stock option 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 (loss) income	14				14
Foreign currency translation adjustment	(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
Issuance of common stock from stock option awards	$ 1			1
Issuance of common stock from stock options awards (shares)	10,000		10,000
Stock-based compensation expense	$ 246			246
Net (loss) income	(249)				(249)
Foreign currency translation adjustment	(4)					(4)
Ending Balance at Dec. 31, 2017	$ 3,488	$ 6	$ 285	$ 284,396	$ (281,124)	$ (75)
Balance (in shares) at Dec. 31, 2017		569	28,480,148