Business Segments - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit for reportable segments	$ 2,480	$ 4,924	$ 193	$ 4,263
Other income (expense) - net	701	(70)	1,264	(129)
Income before income taxes	2,797	3,993	703	2,402
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit for reportable segments	4,635	7,619	2,735	8,797
Interest expense - net	(384)	(861)	(754)	(1,732)
Other income (expense) - net	701	(70)	1,264	(129)
Unallocated corporate expenses and other unallocated charges	(2,155)	(2,695)	(2,542)	(4,534)
Income before income taxes	$ 2,797	$ 3,993	$ 703	$ 2,402