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Note 4 - Investment in Peak Gold, LLC - Roll-forward of Investment in the Joint Venture Company (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016	Jun. 30, 2015
Investment balance
Loss from equity investment in Peak Gold, LLC
Investment balance
The Joint Venture Company [Member]
Investment balance			0	$ 0	0
Investment in Peak Gold, LLC			0		0	1,433,886
Loss from equity investment in Peak Gold, LLC			0		0	(1,433,886)
Investment balance	$ 0		$ 0		$ 0	$ 0