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Note 8 - Investment in Peak Gold, LLC - Roll-forward of Investment in the Joint Venture Company (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Investment balance
Investment in Peak Gold, LLC	3,861,252	$ 3,720,000
Loss from equity investment in Peak Gold, LLC	(3,861,252)	(3,720,000)
Investment balance
The Joint Venture Company [Member]
Investment balance	0
Investment in Peak Gold, LLC	3,861,252	3,720,000	4,140,000	2,580,000			1,433,886
Loss from equity investment in Peak Gold, LLC	(3,861,252)	(3,720,000)	(4,140,000)	(2,580,000)			(1,433,886)
Investment balance	$ 0	$ 0

X

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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