Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue	$ 123,302	$ 116,828
Cost of revenue	66,324	63,388
Gross profit	56,978	53,440
Operating expenses:
Selling expense	17,605	15,903
Engineering and product development expense	7,618	7,529
General and administrative expense	21,316	19,287
Total operating expenses	46,539	42,719
Operating income	10,439	10,721
Interest expense	(679)	(635)
Other income	1,288	59
Earnings before income tax expense	11,048	10,145
Income tax expense	1,706	1,684
Net earnings	$ 9,342	$ 8,461
Earnings per common share – basic (in dollars per share)	$ 0.82	$ 0.79
Weighted average common shares outstanding – basic (in shares)	11,461,399	10,673,017
Earnings per common share – diluted (in dollars per share)	$ 0.79	$ 0.78
Weighted average common shares and common share equivalents outstanding – diluted (in shares)	11,779,912	10,862,538