Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Consolidated Statements Of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 5,547	$ 1,120	$ (5,100)
Interest rate swap, net of taxes of $0	(8)	26	22
Pension and postretirement obligations, net of taxes of $0	20	20	20
Foreign currency translation adjustment, net of taxes of $0	(206)	235	(335)
Comprehensive income (loss)	$ 5,353	$ 1,401	$ (5,393)