Condensed Consolidated Statements of Income and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net sales	$ 33,891	$ 35,021	$ 68,106	$ 69,909
Cost of goods sold	29,274	29,547	58,041	58,951
Gross profit	4,617	5,474	10,065	10,958
Operating expenses:
Selling	909	953	1,714	1,843
General and administrative	2,982	3,105	6,152	6,370
Research and development	291	317	609	593
Restructuring charges	91		91
Total operating expenses	4,273	4,375	8,566	8,806
Income from operations	344	1,099	1,499	2,152
Other expense:
Interest expense	(165)	(125)	(332)	(235)
Income before income taxes	179	974	1,167	1,917
Income tax expense	22	340	245	602
Net income	$ 157	$ 634	$ 922	$ 1,315
Net income per common share:
Basic (in dollars per share)	$ 0.06	$ 0.23	$ 0.34	$ 0.49
Weighted average number of common shares outstanding - basic (in shares)	2,760,052	2,718,066	2,751,330	2,705,121
Diluted (in dollars per share)	$ 0.05	$ 0.22	$ 0.32	$ 0.46
Weighted average number of common shares outstanding - diluted (in shares)	2,935,671	2,870,848	2,922,113	2,887,313
Other comprehensive income (loss)
Foreign currency translation	$ (175)	$ (281)	$ (358)	$ (241)
Comprehensive income (loss), net of tax	$ (18)	$ 353	$ 564	$ 1,074