Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Sales, net	$ 24,411	$ 20,179	$ 64,630	$ 58,664
Expenses:
Cost of products	12,222	12,343	33,453	36,993
Gross margin	12,189	7,836	31,177	21,671
Selling, general and administrative expenses:
Engineering and product development	2,771	1,861	7,805	5,922
Marketing and selling	2,130	1,459	5,910	4,617
General and administrative	2,443	1,905	5,704	5,513
Total selling, general and administrative expenses	7,344	5,225	19,419	16,052
Operating income	4,845	2,611	11,758	5,619
Other income (expense):
Net interest income (expense)	94	(1)	136	(281)
Gain on disposal of property, plant and equipment	0	0	0	2
Loss on investments	0	0	0	(91)
Other expense	(51)	(6)	(188)	(59)
Total other income (expense), net	43	(7)	(52)	(429)
Income before income taxes	4,888	2,604	11,706	5,190
Net income	$ 3,436	$ 2,357	$ 9,309	$ 4,702
Weighted average shares outstanding-basic (in shares)	3,708,717	3,539,841	3,643,097	3,536,100
Weighted average shares outstanding-diluted (in shares)	3,951,433	3,751,073	3,913,148	3,623,241
Provision for income tax expense	$ (1,452)	$ (247)	$ (2,397)	$ (488)
Earnings per share-basic: (in dollars per share)	$ 0.93	$ 0.67	$ 2.56	$ 1.33
Earnings per share-diluted: (in dollars per share)	$ 0.87	$ 0.63	$ 2.38	$ 1.3