Note G - Stock-based Compensation - Restricted Stock Units' Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Vested, number of shares (in shares)	(69,110)	(4,146)
Vested, weighted average grant date fair value (in dollars per share)	$ 5.44
Restricted Stock Units (RSUs) [Member]
Balance, number of shares (in shares)	646,439	789,709
Unvested shares outstanding, weighted average grant date fair value (in dollars per share)	$ 4.41	$ 2.22
Granted, number of shares (in shares)	208,165	500,890
Granted, weighted average grant date fair value (in dollars per share)	$ 8.93	$ 5.72
Vested, number of shares (in shares)	(296,161)	(396,407)
Vested, weighted average grant date fair value (in dollars per share)	$ 4.85	$ 3.00
Forfeited, number of shares (in shares)	(82,267)	(247,753)
Forfeited, weighted average grant date fair value (in dollars per share)	$ 3.29	$ 2.35
Adjustment and Correction (in shares)	40,000
Adjustment and Correction, weighted average grant date fair value (in dollars per share)
Balance, number of shares (in shares)	516,176	646,439
Unvested shares outstanding, weighted average grant date fair value (in dollars per share)	$ 6.43	$ 4.41