Note 4 - Warrants - Assumptions Used (Details)	Mar. 31, 2025	Dec. 31, 2024
Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants, assumptions	0.039	0.042
Minimum [Member] | Measurement Input, Price Volatility [Member]
Warrants, assumptions	1.013	0.769
Minimum [Member] | Measurement Input, Expected Term [Member]
Warrants, assumptions	0.4	0.6
Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants, assumptions	0.043	0.044
Maximum [Member] | Measurement Input, Price Volatility [Member]
Warrants, assumptions	2.461	0.994
Maximum [Member] | Measurement Input, Expected Term [Member]
Warrants, assumptions	4.9	4.8