Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue	$ 31,919	$ 24,081
Cost of revenue	16,867	13,068
Gross profit	15,052	11,013
Operating expenses:
Selling expense	4,455	3,456
Engineering and product development expense	1,904	1,924
General and administrative expense	5,175	4,831
Total operating expenses	11,534	10,211
Operating income	3,518	802
Interest expense	(182)	(137)
Other income (expense)	58	(10)
Earnings before income tax expense	3,394	655
Income tax expense	577	78
Net earnings	$ 2,817	$ 577
Earnings per common share – basic (in dollars per share)	$ 0.26	$ 0.05
Weighted average common shares outstanding – basic (in shares)	10,755,729	10,617,271
Earnings per common share – diluted (in dollars per share)	$ 0.25	$ 0.05
Weighted average common shares and common share equivalents outstanding – diluted (in shares)	11,088,664	10,842,592