Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common stock	Treasury stock	Additional paid-in capital	Accum other comp inc.	Accum deficit	Total
Balance at Dec. 31, 2017	$ 29	$ (12,148)	$ 375,611	$ (3)	$ (330,156)	$ 33,333
Balance, Shares at Dec. 31, 2017	2,910,334	(177,484)
Exercise of stock options, net of shares withheld for employee taxes			1			1
Exercise of stock options, net of shares withheld for employee taxes, Shares	125
Stock-based compensation			47			47
Restricted stock issued			69			69
Restricted stock issued, Shares	6,592
Common stock issued, net of shares withheld for employee taxes			251			251
Common stock issued, net of shares withheld for employee taxes, Shares	2,491
Unrealized gain on currency translation				1		1
Purchase of treasury stock, at cost		$ (65)				(65)
Purchase of treasury stock, at cost, Shares		(8,457)
Net income					963	963
Balance at Dec. 31, 2018	$ 29	$ (12,213)	375,979	(2)	(329,193)	34,600
Balance, Shares at Dec. 31, 2018	2,919,542	(185,941)
Stock-based compensation			508			508
Restricted stock issued			15			15
Restricted stock issued, Shares	2,538
Common stock issued, net of shares withheld for employee taxes			(196)			(196)
Common stock issued, net of shares withheld for employee taxes, Shares	33,173
Unrealized gain on currency translation				1		1
Purchase of treasury stock, at cost		$ (536)				(536)
Purchase of treasury stock, at cost, Shares		(67,141)
Net income					(1,147)	(1,147)
Balance at Dec. 31, 2019	$ 29	$ (12,749)	$ 376,306	$ (1)	$ (330,340)	$ 33,245
Balance, Shares at Dec. 31, 2019	2,955,253	(253,082)