Note 7 - Other Assets - Components of Other Current Assets (Details) - USD ($)	Sep. 30, 2022	Jun. 30, 2022	[1]	Sep. 30, 2021
Prepaid expenses	$ 703,333			$ 630,285
Other current assets	19,211			69,262
Total	$ 722,544	$ 699,547		$ 699,547

[1] Derived from audited financial statements