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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND RECENTLY ADOPTED AND RECENTLY ISSUED ACCOUNTING STANDARDS (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Jun. 30, 2019 USD ($) $ / oz | Jun. 30, 2018
Minimum |  |
Term of the contract | 10 days |
Maximum |  |
Term of the contract | 3 months |
Mount Milligan |  |
Cash payment for each ounce of gold (in dollars per ounce) | $ / oz | 435 |
Peak Gold |  |
Fair value of the company | $ | $ 45.7 |
Membership interest | 40.00% | 40.00%

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