Note 9 - Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Details) - USD ($)	Mar. 31, 2023	Jun. 30, 2022
Accounts payable	$ 1,421,818	$ 2,001,978
Taxes payable	111,922	196,473
Accrued payroll, vacation and bonus payable	254,301	331,644
Accrued operating expenses	626,587	275,695
Total	$ 2,414,628	$ 2,805,790	[1]

[1] Derived from audited financial statements