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Note 6 - Fair Value Measurement - Schedule of Fair Value Valuation (Details)
Jun. 30, 2025
Dec. 31, 2024
Measurement Input, Exercise Price [Member]    
Derivative, measurement input 0 1.9445
Measurement Input, Share Price [Member]    
Derivative, measurement input 1.03 3.47
Measurement Input, Expected Term [Member]    
Derivative, measurement input 4.25 4.75
Measurement Input, Price Volatility [Member]    
Derivative, measurement input 1.3198 1.33
Measurement Input, Risk Free Interest Rate [Member]    
Derivative, measurement input 0.0374 0.0428
Measurement Input, Expected Dividend Rate [Member]    
Derivative, measurement input 0 0
Probability of Capital Raise Below Exercise Price [Member]    
Derivative, measurement input 0 1