Note 9 - Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Details) - USD ($)	Sep. 30, 2022	Jun. 30, 2022
Accounts payable	$ 1,313,768	$ 2,001,978
Taxes payable	243,920	196,473
Accrued payroll, vacation and bonus payable	469,711	331,644
Accrued operating expenses	542,447	275,695
Total	$ 2,569,846	$ 2,805,790	[1]

[1] Derived from audited financial statements