Note 9 - Subsequent Events (Details Textual) - USD ($)	1 Months Ended	9 Months Ended
	May 05, 2017	Mar. 31, 2017	Mar. 31, 2016
Stock Issued During Period, Shares, Issued for Services		193,670
Stock Issued During Period, Value, Issued for Services		$ 148,110
Sale of Units, Value		$ 249,628
Share Price		$ 0.75
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		294,500	100,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 0.97
Subsequent Event [Member]
Stock Issued During Period, Shares, Issued for Services	9,201
Stock Issued During Period, Value, Issued for Services	$ 8,000
Sale of Units, Number Of Units Issued	134,013
Shares Issued, Price Per Share	$ 0.75
Sale of Units, Value	$ 100,000
Number of Share Per Unit	1
Share Price	$ 1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	25,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 1
Warrant Component of Equity Unit, Number of Shares of Restricted Common Stock Called by Each Warrant	0.5