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Share Capital - Summary of Warrants Outstanding (Details) - $ / shares | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
--- | --- | --- | ---
Disclosure of classes of share capital [line items] |  |  |
Warrants (in shares) | 1,078,747 | 1,982,156 | 595,215
Exercise Price Range One |  |  |
Disclosure of classes of share capital [line items] |  |  |
Warrants (in shares) | 550,555 |  |
Exercise Price Range One | Bottom of range |  |  |
Disclosure of classes of share capital [line items] |  |  |
Exercise price of outstanding warrants (in CAD per share) | $ 16.36 |  |
Exercise Price Range One | Top of range |  |  |
Disclosure of classes of share capital [line items] |  |  |
Exercise price of outstanding warrants (in CAD per share) | $ 48.00 |  |
Exercise Price Range Two |  |  |
Disclosure of classes of share capital [line items] |  |  |
Warrants (in shares) | 528,192 |  |
Exercise Price Range Two | Bottom of range |  |  |
Disclosure of classes of share capital [line items] |  |  |
Exercise price of outstanding warrants (in CAD per share) | $ 112.44 |  |
Exercise Price Range Two | Top of range |  |  |
Disclosure of classes of share capital [line items] |  |  |
Exercise price of outstanding warrants (in CAD per share) | $ 116.09 |  |

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