Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income
Beginning of period (in shares) at Dec. 31, 2020		2,661,386	(55,697)
Beginning of period at Dec. 31, 2020	$ 94,903	$ 3,064	$ (61)	$ 220,852	$ (132,248)	$ 3,296
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,036			1,036
Net loss	(6,504)				(6,504)
Foreign currency translation adjustment	2,354					2,354
End of period (in shares) at Mar. 31, 2021		2,661,386	(55,697)
End of period at Mar. 31, 2021	$ 91,789	$ 3,064	$ (61)	221,888	(138,752)	5,650
Beginning of period (in shares) at Dec. 31, 2021	2,617,397	2,661,386	(43,989)
Beginning of period at Dec. 31, 2021	$ 32,693	$ 3,064	$ (48)	223,103	(200,403)	6,977
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	502			502
Net loss	(5,349)				(5,349)
Foreign currency translation adjustment	$ 1,109					1,109
End of period (in shares) at Mar. 31, 2022	2,617,397	2,661,386	(43,989)
End of period at Mar. 31, 2022	$ 28,955	$ 3,064	$ (48)	$ 223,605	$ (205,752)	$ 8,086