Note 4 - Common Stock (Details Textual) - USD ($)			1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 03, 2017	Mar. 10, 2016	May 12, 2017	Mar. 31, 2017	Mar. 31, 2016	Sep. 30, 2016	Dec. 31, 2016
Common stock, shares authorized (in shares)				100,000,000			100,000,000
Common Stock, Shares Outstanding and Reserved				26,661,574
Common Stock, Shares, Issued				22,350,935			21,916,143
Common Stock, Shares Subscribed but Unissued				270,000
Amount of Private Placement		$ 937,500				$ 1,875,000
Proceeds from Issuance of Private Placement				$ 50,625	$ 250,000
Subsequent Event [Member]
Shares Authorized During Period, Private Placement			0
Chief Executive Officer [Member]
Deferred Compensation Arrangement with Individual, Shares Issued	145,405
Chief Financial Officer [Member]
Deferred Compensation Arrangement with Individual, Shares Issued	19,387
The Chief Executive Officer and Chief Financial Officer [Member]
Shares Issued, Price Per Share	$ 0.2579
Deferred Compensation Arrangement with Individual, Fair Value of Shares Issued	$ 42,500
Private Placement [Member]
Sale of Stock, Price Per Share		$ 0.1875
Share Price						$ 0.1875
Stock Issued During Period, Shares, New Issues				270,000
Shares Issued, Price Per Share				$ 0.1875
Maximum [Member]
Shares Authorized During Period, Private Placement		5,000,000				10,000,000
Debt Convertible to Common Stock [Member]
Common Stock, Capital Shares Reserved for Future Issuance				4,310,639