Note 10 - Related Party Transactions (Details Textual) - Coalition for Affordable Bay Solutions [Member] - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction, Reimbursements	$ 0	$ 0	$ 0	$ 0
Payments for Consulting Expenses	$ 0	$ 26,920	$ 0	$ 39,820