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Note 6 - Fair Value Measurements - Schedule of Fair Value Valuation (Details)
Mar. 31, 2026
Dec. 31, 2025
Measurement Input, Exercise Price [Member]    
Derivative, measurement input 0 0
Measurement Input, Share Price [Member]    
Derivative, measurement input 0.904 0.8138
Measurement Input, Expected Term [Member]    
Derivative, measurement input 3.5 3.75
Measurement Input, Price Volatility [Member]    
Derivative, measurement input 1.4665 1.4018
Measurement Input, Risk Free Interest Rate [Member]    
Derivative, measurement input 0.0381 0.0364
Measurement Input, Expected Dividend Rate [Member]    
Derivative, measurement input 0 0
Probability of Capital Raise Below Exercise Price [Member]    
Derivative, measurement input 1 1