CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' 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, 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	38	0	0	$ 0	38
Common stock issued for RSUs vested	$ 0	0	0	0	0	0
Common stock issued for RSUs vested (in shares)	41
Shares withheld to pay taxes	$ 0	(28)	0	0	0	(28)
Foreign currency translation adjustment	0	0	0	1,106	0	1,106
Net loss	0	0	(2,205)	0	0	(2,205)
Balance at Mar. 31, 2021	$ 222	79,697	(67,396)	(108)	$ (2,999)	9,416
Balance (in shares) at Mar. 31, 2021	22,234				(1,599)
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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	359	0	0	$ 0	359
Common stock issued for RSUs vested	$ 1	(1)	0	0	0	0
Common stock issued for RSUs vested (in shares)	76
Shares withheld to pay taxes	$ 0	(86)	0	0	0	(86)
Foreign currency translation adjustment	0	0	0	181	0	181
Net loss	0	0	(3,434)	0	0	(3,434)
Balance at Mar. 31, 2022	$ 226	$ 80,777	$ (58,018)	$ 77	$ (2,999)	$ 20,063
Balance (in shares) at Mar. 31, 2022	22,609				(1,599)