Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue	$ 24,081	$ 19,556
Cost of revenue	13,068	10,035
Gross profit	11,013	9,521
Operating expenses:
Selling expense	3,456	2,403
Engineering and product development expense	1,924	1,322
General and administrative expense	4,831	3,161
Restructuring and other charges	0	55
Total operating expenses	10,211	6,941
Operating income	802	2,580
Other expense	(147)	(2)
Earnings before income tax expense	655	2,578
Income tax expense	78	366
Net earnings	$ 577	$ 2,212
Earnings per common share – basic (in dollars per share)	$ 0.05	$ 0.21
Weighted average common shares outstanding – basic (in shares)	10,617,271	10,329,449
Earnings per common share – diluted (in dollars per share)	$ 0.05	$ 0.21
Weighted average common shares and common share equivalents outstanding – diluted (in shares)	10,842,592	10,525,826