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Share Capital and Warrants - Summary of Common Share Purchase Warrants (Parenthetical) (Details) |  | 12 Months Ended |
--- | --- | --- | ---
Aug. 01, 2019 $ / shares | Dec. 31, 2020 | Dec. 31, 2019 $ / shares shares | Dec. 31, 2019 $ / shares
Warrants | CAD Denominated Convertible Notes |  |  |  |
Disclosure Of Common Share Purchase Warrants [Line Items] |  |  |  |
Warrant exercise price |  |  | $ 4.38 |
Warrants issued on conversion of convertible notes | shares |  |  | 3,095,386 |
Warrants | USD Denominated Convertible Notes |  |  |  |
Disclosure Of Common Share Purchase Warrants [Line Items] |  |  |  |
Warrant exercise price |  |  |  | $ 3.75
Warrants issued on conversion of convertible notes | shares |  |  | 476,888 |
Director |  |  |  |
Disclosure Of Common Share Purchase Warrants [Line Items] |  |  |  |
Share purchase warrants | shares |  |  | 480,000 |
Warrant exercise price |  |  | $ 15.94 |
40% Warrants |  |  |  |
Disclosure Of Common Share Purchase Warrants [Line Items] |  |  |  |
Percentage of warrants | 40.00% | 40.00% |  |
Exercise price of warrants | $ 21.63 |  |  |
60% Warrants |  |  |  |
Disclosure Of Common Share Purchase Warrants [Line Items] |  |  |  |
Percentage of warrants | 60.00% | 60.00% |  |
Exercise price of warrants | $ 20.76 |  |  |

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