Segment Information - Financial Data by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Net Sales	$ 49,063	$ 48,166	$ 149,018	$ 148,547
Less: Segment cost of sales	29,868	29,602	89,756	89,960
Less: Segment selling, general, and administrative expenses	16,188	15,638	47,438	46,728
Operating income	3,007	2,926	11,824	11,859
Interest expense	(451)	(568)	(1,310)	(1,622)
Interest income	29	33	88	105
Other income, net	(146)	17	44	90
Income before income tax expense	2,439	2,408	10,646	10,432
Assets	173,042	165,473	173,042	165,473	$ 162,171
Additions to property, plant and equipment	6,780	1,351	9,753	5,451
Depreciation and amortization	1,605	1,526	4,629	4,469
United States Segment
Net Sales	41,373	41,131	125,487	126,579
Less: Segment cost of sales	25,066	25,027	75,038	76,000
Less: Segment selling, general, and administrative expenses	13,531	13,295	39,680	39,898
Operating income	2,776	2,809	10,769	10,681
Assets	149,887	144,634	149,887	144,634
Additions to property, plant and equipment	6,768	1,335	9,698	5,187
Depreciation and amortization	1,569	1,423	4,491	4,139
Canada Segment
Net Sales	3,459	3,287	11,842	10,384
Less: Segment cost of sales	2,142	2,108	7,114	6,372
Less: Segment selling, general, and administrative expenses	1,190	1,120	3,686	3,209
Operating income	127	59	1,042	803
Assets	11,254	11,201	11,254	11,201
Additions to property, plant and equipment	(1)	0	30	176
Depreciation and amortization	29	86	104	286
Europe Segment
Net Sales	4,231	3,748	11,689	11,584
Less: Segment cost of sales	2,660	2,467	7,604	7,588
Less: Segment selling, general, and administrative expenses	1,467	1,223	4,072	3,621
Operating income	104	58	13	375
Assets	11,901	9,638	11,901	9,638
Additions to property, plant and equipment	13	15	25	88
Depreciation and amortization	$ 7	$ 16	$ 34	$ 44