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Non-Cash Transactions - Additional Information (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jul. 07, 2016 | Jun. 30, 2018 | Jun. 30, 2017
Nonmonetary Transaction [Line Items] |  |  |
Amount of non-cash activities |  | $ 0 |
Calico Resources Corp. | Common Stock |  |  |
Nonmonetary Transaction [Line Items] |  |  |
Common shares issued for acquisition | 7,171,163 |  | 7,171,163
Value of common shares issued for acquisition | $ 15,202,866 |  | $ 15,202,866

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