CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ 8,789	$ 3,846	$ (22,399)
Other comprehensive income (loss)
Cumulative translation adjustment, net of tax	1,543	(5,516)	4,029
Pension adjustment, net of tax	(1,551)	797	313
Comprehensive income (loss)	$ 8,781	$ (873)	$ (18,057)