Note 14 - Income Taxes - Unrecognized Tax Benefits (Details)	12 Months Ended
	Jun. 30, 2023 USD ($)
Balance	$ 314,932
Additions based on tax positions taken during a prior period	12,597
Reductions based on tax positions taken during a prior period	0
Additions based on tax positions taken during the current period	0
Reductions based on tax positions taken during the current period	0
Reductions related to settlement of tax matters	0
Reductions related to a lapse of applicable statute of limitations	0
Balance	$ 327,530