Note 10 - Subsequent Events (Details Textual) - USD ($)	1 Months Ended	9 Months Ended
	May 08, 2018	Mar. 31, 2018	Jun. 30, 2017	Mar. 31, 2017
Stock Issued During Period, Shares, Issued for Services		18,849
Stock Issued During Period, Value, Issued for Services		$ 14,631
Sale of Units, Value		306,997
Deferred Compensation Liability, Current, Total		$ 345,929	$ 2,107,262	$ 1,962,885
Class of Warrant or Right, Issued During Period		3,460,000
Subsequent Event [Member]
Stock Issued During Period, Shares, Issued for Services	3,750
Stock Issued During Period, Value, Issued for Services	$ 2,000
Sale of Units, Number Of Units Subscribed	71,000
Shares Issued, Price Per Share	$ 0.50
Sale of Units, Value	$ 36,000
Number of Shares Per Unit	1
Share Price	$ 0.75
Subsequent Event [Member] | Consultant [Member]
Deferred Compensation Liability, Current, Total	$ 60,000
Stock Issued During Period, Shares, New Issues	120,000
Class of Warrant or Right, Issued During Period	60,000
Subsequent Event [Member] | Smith [Member]
Stock Issued During Period, Shares, New Issues	307,080
Class of Warrant or Right, Issued During Period	153,540
Due to Affiliate	$ 18,000
Accounts Payable, Total	65,540
Deferred Compensation Liability, Current and Noncurrent, Total	$ 70,000