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, 2019		2,661,386	(55,697)
Beginning of period at Dec. 31, 2019	$ 141,186	$ 3,064	$ (61)	$ 216,072	$ (85,640)	$ 7,751
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	4,780			4,780
Net loss	(46,608)				(46,608)
Foreign currency translation adjustment	$ (4,455)					(4,455)
End of period (in shares) at Dec. 31, 2020	2,605,689	2,661,386	(55,697)
End 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	$ 2,725			2,725
Treasury stock issued during period, shares, equity-based plans (in shares)	(11,708)		11,708
Treasury stock issued during period, value, equity-based plans	$ (461)		$ 13	(474)
Net loss	(68,155)				(68,155)
Foreign currency translation adjustment	$ 3,681					3,681
End of period (in shares) at Dec. 31, 2021	2,617,397	2,661,386	(43,989)
End of period at Dec. 31, 2021	$ 32,693	$ 3,064	$ (48)	$ 223,103	$ (200,403)	$ 6,977