Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue	$ 9,271	$ 7,849	$ 28,118	$ 22,894
Selling, general and administrative expenses	6,354	2,111	17,824	7,989
Depreciation and amortization	699	497	2,096	1,518
Income from operations	2,218	5,241	8,198	13,387
Other miscellaneous income (expense)	117	(99)	259	(2,021)
Interest income	83	51	197	198
Interest and other financing expense	(302)	(99)	(1,155)	(256)
Net income before income taxes	2,116	5,094	7,499	11,308
Provision for income taxes	518	946	1,530	1,871
Net income from continuing operations	1,598	4,148	5,969	9,437
Income (loss) from discontinued operations, net of tax	(115)	98	151	304
Net income	$ 1,483	$ 4,246	$ 6,120	$ 9,741
Basic earnings (loss) per share
Continuing operations (in dollars per share)	$ 0.12	$ 0.3	$ 0.44	$ 0.7
Discontinued operations (in dollars per share)	(0.01)	0.01	0.01	0.02
Total (in dollars per share)	0.11	0.31	0.45	0.72
Diluted earnings (loss) per share
Continuing operations (in dollars per share)	0.12	0.3	0.44	0.69
Discontinued operations (in dollars per share)	(0.01)	0.01	0.01	0.02
Total (in dollars per share)	$ 0.11	$ 0.31	$ 0.45	$ 0.71
Weighted average shares outstanding
Basic (in shares)	13,751	13,610	13,709	13,598
Diluted (in shares)	13,820	13,677	13,777	13,688
Royalty [Member]
Revenue	$ 8,894	$ 7,420	$ 26,920	$ 21,217
Service [Member]
Revenue	$ 377	$ 429	$ 1,198	$ 1,677