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, 2020	$ 176,830	$ 111	$ 44,583	$ 165,107	$ (12,703)	$ (20,268)	$ 0
Increase (Decrease) in Stockholders' Equity
Net (loss) income	3,896			3,960			(64)
Other comprehensive loss income, net of tax:
Pension liability adjustment	274					274
Foreign currency translation adjustment	(649)					(639)	(10)
Unrealized derivative gain on cash flow hedges	(33)					(33)
Cash flow hedges reclassified to earnings	409					409
Issuance of common shares, net of share withheld for taxes	(549)		(2,335)		1,786
Stock-based compensation	1,800		1,800
Investment of noncontrolling interest	396						396
Ending balance at Sep. 30, 2021	182,374	111	44,048	169,067	(10,917)	(20,257)	322
Beginning balance at Jun. 30, 2021	180,892	111	43,650	166,725	(11,104)	(18,873)	383
Increase (Decrease) in Stockholders' Equity
Net (loss) income	2,312			2,342			(30)
Other comprehensive loss income, net of tax:
Pension liability adjustment	92					92
Foreign currency translation adjustment	(1,610)					(1,579)	(31)
Unrealized derivative gain on cash flow hedges	(33)					(33)
Cash flow hedges reclassified to earnings	136					136
Issuance of common shares, net of share withheld for taxes	(2)		(189)		187
Stock-based compensation	587		587
Ending balance at Sep. 30, 2021	182,374	111	44,048	169,067	(10,917)	(20,257)	322
Beginning balance at Dec. 31, 2021	183,610	111	43,272	168,733	(10,179)	(18,845)	518
Increase (Decrease) in Stockholders' Equity
Net (loss) income	(1,715)			(1,633)			(82)
Other comprehensive loss 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 (loss) income	(2,105)			(2,077)			(28)
Other comprehensive loss 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