Segment Information - Financial Data by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Sales to external customers	$ 55,425	$ 53,336	$ 100,382	$ 99,175
Operating income	6,375	5,250	8,934	7,438
Interest expense, net	539	832	982	1,734
Other income, net	(28)	(23)	(72)	(46)
Consolidated income before income taxes	5,864	4,441	8,024	5,750
Assets	173,541		173,541		$ 149,241
United States Segment
Sales to external customers	47,455	45,200	85,448	84,054
Operating income	5,535	4,251	7,873	6,031
Assets	152,098		152,098		131,382
Canada Segment
Sales to external customers	4,061	4,376	7,098	7,633
Operating income	703	742	744	960
Assets	12,027		12,027		8,557
Europe Segment
Sales to external customers	3,909	3,760	7,836	7,488
Operating income	137	$ 257	317	$ 447
Assets	$ 9,416		$ 9,416		$ 9,302