Note L - Acquisition of Inside Out Solutions, LLC (Details Textual) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Dec. 01, 2022	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Cash Held in Escrow		$ 1,000	$ 1,000		$ 9,926
Goodwill, Ending Balance		2,398	2,398	$ 2,398
Inside Out Solutions, LLC [Member]
Cash Held in Escrow		1,000	1,000	$ 1,000
Inside Out Solutions, LLC [Member]
Business Combination, Consideration Transferred, Total	$ 7,500
Payments to Acquire Businesses, Gross	5,750
Cash Held in Escrow	1,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	750
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	3,600
Goodwill, Ending Balance	2,400
Amortization of Intangible Assets		180	360
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		2,300	5,100
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual		$ 100	$ 600
Inside Out Solutions, LLC [Member] | Minimum [Member]
Working Capital	1,300
Inside Out Solutions, LLC [Member] | Maximum [Member]
Working Capital	$ 1,600