Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 1,983	$ 8,172	$ 17,707
Other comprehensive income (loss), net of tax:
Translation (loss) income	(538)	2,256	(343)
Interest rate swap			(574)
Minimum pension liability adjustment	2,964	(2,247)	(184)
Comprehensive income	$ 4,409	$ 8,181	$ 16,606