Note 7 - Convertible Promissory Note - Fair Value Inputs (Details)	Dec. 31, 2023	Jul. 31, 2023	Mar. 31, 2023	Jan. 31, 2023
Measurement Input, Conversion Price Before [Member]
Conversion price before	1.07	2.65	2.87	6.3
Measurement Input, Conversion Price [Member]
Conversion price before	0.79	1.07	2.65	2.87
Measurement Input, Expected Term [Member]
Conversion price before	0.05	0.42	0.78	0.09
Measurement Input, Price Volatility [Member]
Conversion price before	0.716	1.568	1.689	1.67
Measurement Input, Expected Dividend Rate [Member]
Conversion price before	0	0	0	0
Measurement Input, Risk Free Interest Rate [Member]
Conversion price before	0.043	0.0422	0.042	0.0446
Convertible Debt [Member] | Measurement Input, Conversion Price Before [Member]
Conversion price before	1.07		2.87
Convertible Debt [Member] | Measurement Input, Conversion Price [Member]
Conversion price before	0.79		2.65
Convertible Debt [Member] | Measurement Input, Expected Term [Member]
Conversion price before	0.14		0.36
Convertible Debt [Member] | Measurement Input, Price Volatility [Member]
Conversion price before	0.963		1.82
Convertible Debt [Member] | Measurement Input, Expected Dividend Rate [Member]
Conversion price before	0		0
Convertible Debt [Member] | Measurement Input, Risk Free Interest Rate [Member]
Conversion price before	0.043		0.042