Note 6 - Fair Value Measurement - Schedule of Fair Value Valuation (Details)	Sep. 30, 2025	Dec. 31, 2024
Measurement Input, Exercise Price [Member]
Derivative, measurement input	0	1.9445
Measurement Input, Share Price [Member]
Derivative, measurement input	2.01	3.47
Measurement Input, Expected Term [Member]
Derivative, measurement input	4	4.75
Measurement Input, Price Volatility [Member]
Derivative, measurement input	1.3715	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