v3.26.1
Note 4 - Equity - Measurement Inputs of Derivative (Details) - ELOC Derivative [Member]
Jun. 30, 2026
Dec. 31, 2025
Measurement Input, Share Price [Member]    
Derivative, measurement input 11.42 38.5
Measurement Input, Price Volatility [Member]    
Derivative, measurement input 1.80 2.25
Measurement Input, Expected Term [Member]    
Derivative, measurement input 1 1.5
Measurement Input, Risk Free Interest Rate [Member]    
Derivative, measurement input 0.035 0.035