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Note N - Fair Value of Financial Instruments - Fair Value Assumptions for Warrant Liabilities (Details)
12 Months Ended
Dec. 31, 2024
yr
$ / shares
Dec. 31, 2023
yr
$ / shares
Weighted average fair value (in dollars per share) | $ / shares $ 3.25 $ 2.94
Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member]    
Measurement Input 0.0408 0.0376
Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member]    
Measurement Input 0.0423 0.0412
Measurement Input, Price Volatility [Member] | Minimum [Member]    
Measurement Input 0.6214 0.6201
Measurement Input, Price Volatility [Member] | Maximum [Member]    
Measurement Input 0.6868 0.9242
Measurement Input, Expected Dividend Rate [Member]    
Measurement Input   0
Measurement Input, Expected Dividend Rate [Member] | Maximum [Member]    
Measurement Input 0  
Measurement Input, Expected Term [Member] | Minimum [Member]    
Measurement Input 1.02 2
Measurement Input, Expected Term [Member] | Maximum [Member]    
Measurement Input 3.89 4.9