CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2019	$ 218	$ 79,400	$ (54,654)	$ (1,846)	$ (2,999)	$ 20,119
Balance (in shares) at Dec. 31, 2019	21,839				(1,599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	378	0	0	$ 0	378
Common stock issued for RSUs vested	$ 4	(4)	0	0	0	0
Common stock issued for RSUs vested (in shares)	354
Shares withheld to pay taxes	$ 0	(87)	0	0	0	(87)
Foreign currency translation adjustment	0	0	0	632	0	632
Net income (loss)	0	0	(10,537)	0	0	(10,537)
Balance at Dec. 31, 2020	$ 222	79,687	(65,191)	(1,214)	$ (2,999)	10,505
Balance (in shares) at Dec. 31, 2020	22,193				(1,599)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	1,043	0	0	$ 0	1,043
Common stock issued for RSUs vested	$ 3	(3)	0	0	0	0
Common stock issued for RSUs vested (in shares)	340
Shares withheld to pay taxes	$ 0	(222)	0	0	0	(222)
Foreign currency translation adjustment	0	0	0	1,110	0	1,110
Net income (loss)	0	0	10,607	0	0	10,607
Balance at Dec. 31, 2021	$ 225	$ 80,505	$ (54,584)	$ (104)	$ (2,999)	$ 23,043
Balance (in shares) at Dec. 31, 2021	22,533				(1,599)