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	$ 33,538	$ 36,769	$ 24,333
Other comprehensive income (loss):
Foreign currency translation adjustment	39	628	1,649
Pension liability, net of tax expense (benefit) of $111, ($18) and $94, respectively	333	(52)	282
Total other comprehensive income (loss)	372	576	1,931
Comprehensive income	$ 33,910	$ 37,345	$ 26,264