CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Common Stock in Treasury
Beginning balance (in shares) at Dec. 31, 2020		17,990,707
Beginning balance at Dec. 31, 2020	$ 360,303	$ 19	$ 287,979	$ 113,508	$ (10,160)	$ (31,043)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(3,221)			(3,221)
Currency translation adjustment	(10,174)				(10,174)
Stock-based compensation	2,094		2,094
Common stock issued, net of shares withheld for employee taxes (in shares)		163,457
Common stock issued, net of shares withheld for employee taxes	1,781		1,530			251
Ending balance (in shares) at Mar. 31, 2021		18,154,164
Ending balance at Mar. 31, 2021	$ 350,783	$ 19	291,603	110,287	(20,334)	(30,792)
Beginning balance (in shares) at Dec. 31, 2021	18,205,636	18,205,636
Beginning balance at Dec. 31, 2021	$ 326,459	$ 20	301,061	73,544	(17,374)	(30,792)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(9,687)			(9,687)
Currency translation adjustment	(1,984)				(1,984)
Stock-based compensation	2,867		2,867
Common stock issued, net of shares withheld for employee taxes (in shares)		55,041
Common stock issued, net of shares withheld for employee taxes	$ (916)		(1,051)			135
Ending balance (in shares) at Mar. 31, 2022	19,588,003	18,260,677
Ending balance at Mar. 31, 2022	$ 316,739	$ 20	$ 302,877	$ 63,857	$ (19,358)	$ (30,657)