Note 11 - Loans - Property and Equipment (Details Textual)	3 Months Ended		9 Months Ended
	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2023 CAD ($)	Jun. 30, 2022 USD ($)
Notes Payable, Current	$ 33,307		$ 33,307			$ 33,496	[1]
Notes Payable, Noncurrent	417,694		417,694			459,178	[1]
Note Payable on Office Land and Building [Member]
Notes Payable	336,951		336,951		$ 456,469
Notes Payable, Current	14,854		14,854			15,135
Notes Payable, Noncurrent	322,097		322,097			350,293
Interest Expense, Debt	3,511	$ 3,865	10,740	$ 11,884
Loans Under Solar Energy System Finance Lease [Member]
Notes Payable, Current	18,453		18,453			18,360
Notes Payable, Noncurrent	$ 95,597		$ 95,597			$ 108,885

[1] Derived from audited financial statements