Note 11 - Subsequent Events (Details Textual) - At-the-Market Program [Member] - USD ($)	1 Months Ended	3 Months Ended
	Oct. 31, 2024	Sep. 30, 2024	Oct. 15, 2024	Oct. 14, 2024
Stock Issued During Period, Shares, New Issues (in shares)		84,600
Proceeds from Issuance of Common Stock		$ 206,003
Weighted Average [Member]
Shares Issued, Price Per Share		$ 2.51
Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues (in shares)	826,761
Proceeds from Issuance of Common Stock	$ 1,761,309
Stock Offering, Maximum Aggregate Offering Price			$ 30,000,000	$ 4,486,846
Subsequent Event [Member] | Weighted Average [Member]
Shares Issued, Price Per Share	$ 2.2