Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Total revenue	$ 55,202	$ 50,402
Total cost of sales	26,960	24,276
Gross profit	28,242	26,126
Operating expenses:
Research and development	14,085	13,686
General and administrative	14,552	14,141
Sales and marketing	6,113	5,390
Total operating expenses	34,750	33,217
Loss from operations	(6,508)	(7,091)
Interest income	1,646	1,766
Other income, net	4,405	6,066
Net (loss) income before income taxes	(457)	741
Income tax (expense) benefit	(129)	40
Net (loss) income and comprehensive (loss) income	$ (586)	$ 781
Net (loss) income per common share:
Basic (in dollars per share)	$ (0.03)	$ 0.04
Diluted (in dollars per share)	$ (0.03)	$ 0.04
Weighted average shares of common stock outstanding:
Basic (in shares)	22,568,253	21,642,793
Diluted (in shares)	22,568,253	22,156,420
Product sales
Total revenue	$ 48,292	$ 42,203
Total cost of sales	25,938	22,812
Licensing, royalty, patent, engineering services and other revenue
Total revenue	6,910	8,199
Total cost of sales	$ 1,022	$ 1,464