Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Noncontrolling Interest
Beginning balance at Dec. 31, 2021	$ 183,610	$ 111	$ 43,272	$ 168,733	$ (10,179)	$ (18,845)	$ 518
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(1,715)			(1,633)			(82)
Other comprehensive income, net of tax:
Pension liability adjustment	149					149
Foreign currency translation adjustment	(8,930)					(8,933)	3
Unrealized derivative gain on cash flow hedges	1,330					1,330
Cash flow hedges reclassified to earnings	93					93
Issuance of common shares, net of share withheld for taxes	(406)		(2,234)		1,828
Stock-based compensation	1,570		1,570
Ending balance at Sep. 30, 2022	175,701	111	42,608	167,100	(8,351)	(26,206)	439
Beginning balance at Jun. 30, 2022	181,039	111	42,201	169,177	(8,391)	(22,547)	488
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(2,105)			(2,077)			(28)
Other comprehensive income, net of tax:
Pension liability adjustment	50					50
Foreign currency translation adjustment	(4,362)					(4,341)	(21)
Unrealized derivative gain on cash flow hedges	632					632
Cash flow hedges reclassified to earnings	0
Issuance of common shares, net of share withheld for taxes	60		20		40
Stock-based compensation	387		387
Ending balance at Sep. 30, 2022	175,701	111	42,608	167,100	(8,351)	(26,206)	439
Beginning balance at Dec. 31, 2022	137,598	111	41,303	123,169	(6,240)	(21,165)	420
Increase (Decrease) in Stockholders' Equity
Net income (loss)	1,769			1,894			(125)
Other comprehensive income, net of tax:
Pension liability adjustment	123					123
Foreign currency translation adjustment	852					840	12
Unrealized derivative gain on cash flow hedges	79					79
Cash flow hedges reclassified to earnings	0
Purchase of common shares for treasury	(878)				(878)
Issuance of common shares, net of share withheld for taxes	(172)		(2,228)		2,056
Stock-based compensation	2,757		2,757
Ending balance at Sep. 30, 2023	142,128	111	41,832	125,063	(5,062)	(20,123)	307
Beginning balance at Jun. 30, 2023	142,592	111	40,919	124,548	(4,846)	(18,536)	396
Increase (Decrease) in Stockholders' Equity
Net income (loss)	447			515			(68)
Other comprehensive income, net of tax:
Pension liability adjustment	42					42
Foreign currency translation adjustment	(1,651)					(1,630)	(21)
Unrealized derivative gain on cash flow hedges	1					1
Cash flow hedges reclassified to earnings	0
Purchase of common shares for treasury	(216)				(216)
Issuance of common shares, net of share withheld for taxes	(15)		(15)
Stock-based compensation	928		928
Ending balance at Sep. 30, 2023	$ 142,128	$ 111	$ 41,832	$ 125,063	$ (5,062)	$ (20,123)	$ 307