Note 12 - Equipment Loans (Details Textual)	3 Months Ended	9 Months Ended
Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2019 CAD ($)	Jun. 30, 2018 USD ($)
Notes Payable, Total	$ 91,923		$ 91,923		$ 122,643
Notes Payable, Current, Total	25,463		25,463			$ 46,705
Notes Payable, Noncurrent, Total	66,461		66,461			$ 149,491
Interest Expense, Debt, Total	$ 1,077	$ 2,630	$ 4,209	$ 7,596

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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