Note L - Fair Value of Financial Instruments - Fair Value Assumptions for Warrant Liabilities (Details)	12 Months Ended
	Dec. 31, 2023 $ / shares	Dec. 31, 2022 $ / shares
Weighted average fair value (in dollars per share)	$ 2.94	$ 2.94
Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Risk-free interest rate	0.0376	0.0401
Minimum [Member] | Measurement Input, Price Volatility [Member]
Risk-free interest rate	0.6201	0.9833
Minimum [Member] | Measurement Input, Expected Term [Member]
Risk-free interest rate	2	3
Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Risk-free interest rate	0.0412	0.0412
Maximum [Member] | Measurement Input, Price Volatility [Member]
Risk-free interest rate	0.9242	1.0301
Maximum [Member] | Measurement Input, Expected Term [Member]
Risk-free interest rate	4.9	4