Segment Information - Financial Data by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Sales to external customers	$ 56,773	$ 44,847	$ 100,106	$ 88,372
Operating income	3,976	3,789	5,347	6,757
Interest expense, net	423	223	729	443
Other expense (income) , net	148	(3,440)	147	(3,363)
Consolidated income before income taxes	3,405	7,006	4,471	9,677
Assets	177,815		177,815		$ 144,439
United States Segment
Sales to external customers	48,905	36,840	84,646	72,888
Operating income	3,454	2,675	4,287	4,807
Assets	157,623		157,623		125,521
Canada Segment
Sales to external customers	3,876	3,990	7,491	7,322
Operating income	474	662	830	1,034
Assets	10,494		10,494		9,100
Europe Segment
Sales to external customers	3,992	4,017	7,969	8,162
Operating income	48	$ 452	230	$ 916
Assets	$ 9,698		$ 9,698		$ 9,818