Consolidated Condensed Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Consolidated Condensed Statements of Comprehensive Income [Abstract]
Net income	$ 1,903	$ 1,079	$ 4,679	$ 737
Interest rate swap, net of taxes of $0	(4)	3	(1)	18
Pension and postretirement obligations, net of taxes of $0	5	5	15	15
Foreign currency translation adjustment, net of taxes of $0	8	116	(171)	241
Comprehensive income	$ 1,912	$ 1,203	$ 4,522	$ 1,011