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Note 2 - Stock Issue (Details Textual) - USD ($)	3 Months Ended				6 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2022	Mar. 31, 2021
Stock Issued During Period, Shares, New Issues (in shares)	1,400,889	13,914	54,613	11,979	64,803
Proceeds from Issuance of Common Stock					$ 28,342,019	$ 1,544,448
Equity Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)	1,350,000
Proceeds from Issuance of Common Stock	$ 27,000,000

X

- Definition

The cash inflow from the additional capital contribution to the entity.

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X

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