Note J - Stock Option Plans - Schedule of Restricted Stock (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Non-vested as January 1, 2022 (in shares)	96,557
Non-vested as January 1, 2022 (in dollars per share) | $ / shares	$ 2.33
Granted, Shares (in shares)	975,148
Granted, Weighted Average Grant-Date Fair Value per Award (in dollars per share) | $ / shares	$ 0.86
Vested, Shares (in shares)	(449,695)
Cancelled, Shares (in shares)	(186,717)
Non-vested, Shares (in shares)	435,293
Non-vested, Weighted Average Grant-Date Fair Value per Award (in dollars per share) | $ / shares	$ 1.18