Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Total revenue	$ 63,765	$ 59,985
Total cost of sales	26,520	26,040
Gross profit	37,245	33,945
Operating expenses:
Research and development	11,776	11,108
General and administrative	14,296	11,741
Sales and marketing	5,288	4,869
Total operating expenses	31,360	27,718
Income from operations	5,885	6,227
Interest expense	(63)	(274)
Other income, net	3,214	190
Net income before income taxes	9,036	6,143
Income tax benefit (expense)	16	(14)
Net income and comprehensive income	$ 9,052	$ 6,129
Net income per common share, Basic	$ 0.44	$ 0.30
Net income per common share, Diluted	$ 0.42	$ 0.29
Weighted average shares of common stock outstanding, basic	20,748,302	20,130,336
Weighted average shares of common stock outstanding, diluted	21,367,304	20,775,925
Product sales
Total revenue	$ 53,123	$ 55,032
Total cost of sales	24,693	25,112
Licensing, royalty, patent and other revenue
Total revenue	10,642	4,953
Total cost of sales	$ 1,827	$ 928