CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue, net	$ 3,278	$ 1,991
Cost of revenue	1,691	750
Gross profit	1,587	1,241
Operating expenses:
Engineering, research and development	527	263
Selling, general and administrative	1,233	960
Total operating expenses	1,760	1,223
Income (loss) from operations	(173)	18
Other income (expense):
Other income (expense), net	64	155
Income (loss) before income taxes	(109)	173
Income tax expense	82	31
Net income (loss)	(191)	142
Net income (loss) applicable to common stockholders	$ (291)	$ 42
Earnings (loss) per common share, basic	$ (0.04)	$ 0.01
Earnings (loss) per common share, diluted	$ (0.04)	$ 0.01
Weighted average common shares outstanding - basic	6,610	6,602
Weighted average common shares outstanding - diluted	6,610	6,602