Note 4 - Warrants - Assumptions Used (Details)	Sep. 30, 2024	Dec. 31, 2023
Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants, assumptions	0.036	0.038
Minimum [Member] | Measurement Input, Price Volatility [Member]
Warrants, assumptions	0.787	0.795
Minimum [Member] | Measurement Input, Expected Term [Member]
Warrants, assumptions	0.4	0.3
Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants, assumptions	0.045	0.054
Maximum [Member] | Measurement Input, Price Volatility [Member]
Warrants, assumptions	1.115	1.087
Maximum [Member] | Measurement Input, Expected Term [Member]
Warrants, assumptions	5	5