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Exploration and Evaluation Assets - Schedule of Exploration and Evaluation Assets (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | $ 64,479 |
Geology |  |
Balance at the end of the year | 38,633 | $ 64,479
Canada [Member] | Post Creek Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 1,719 |
Balance at the end of the year | 1,796 | 1,719
Canada [Member] | Halcyon Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 431 |
Balance at the end of the year | 463 | 431
Canada [Member] | Quetico Claims [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 64 |
Balance at the end of the year | 81 | 64
Canada [Member] | Enid Creek [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 116 |
Canada [Member] | Lingman Lake [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 27 |
United States [Member] | Section 35 Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 8 |
Balance at the end of the year |  | 8
Greenland [Member] | Maniitsoq Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 62,257 |
Balance at the end of the year | 36,150 | 62,257
Exploration and Evaluation Assets Arising From Acquisition [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 602 | 534
Acquisition costs - cash | 118 | 68
Balance at the end of the year | 720 | 602
Exploration and Evaluation Assets Arising From Acquisition [Member] | Canada [Member] | Post Creek Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 288 | 278
Acquisition costs - cash | 10 | 10
Balance at the end of the year | 298 | 288
Exploration and Evaluation Assets Arising From Acquisition [Member] | Canada [Member] | Halcyon Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 222 | 214
Acquisition costs - cash | 8 | 8
Balance at the end of the year | 230 | 222
Exploration and Evaluation Assets Arising From Acquisition [Member] | Canada [Member] | Quetico Claims [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 42 |
Acquisition costs - cash |  | 42
Balance at the end of the year | 42 | 42
Exploration and Evaluation Assets Arising From Acquisition [Member] | Canada [Member] | Enid Creek [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year |  |
Acquisition costs - cash | 83 |
Balance at the end of the year | 83 |
Exploration and Evaluation Assets Arising From Acquisition [Member] | Canada [Member] | Lingman Lake [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year |  |
Acquisition costs - cash | 14 |
Balance at the end of the year | 14 |
Exploration and Evaluation Assets Arising From Acquisition [Member] | United States [Member] | Section 35 Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 8 | 6
Acquisition costs - cash | 3 | 2
Balance at the end of the year | 11 | 8
Exploration and Evaluation Assets Arising From Acquisition [Member] | Greenland [Member] | Maniitsoq Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 42 | 36
Acquisition costs - cash |  | 6
Balance at the end of the year | 42 | 42
Exploration and Evaluation Assets Arising From Exploration [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 63,877 | 602
Administration | 14 | 491
Corporate social responsibility | 3 | 60
Property maintenance | 31 | 22
Drilling expenses | 261 | 4,489
Environment, health & safety | 8 | 135
Geology | 200 | 739
Geophysics | 39 | 854
Camp operations |  | 2,943
Helicopter charter aircraft | (21) | 4,138
Infrastructure | 11 | 31
Write-off | (26,510) |
Technical studies |  | 15
Increase in exploration and evaluation assets | (25,964) | 13,917
Balance at the end of the year | 37,913 | 63,877
Exploration and Evaluation Assets Arising From Exploration [Member] | Canada [Member] | Post Creek Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 1,431 | 1,138
Administration | 1 | 2
Corporate social responsibility | 2 | 1
Property maintenance | 7 | 2
Drilling expenses | 32 | 219
Environment, health & safety |  |
Geology | 24 | 40
Geophysics | 1 | 29
Camp operations |  |
Helicopter charter aircraft |  |
Infrastructure |  |
Write-off |  |
Technical studies |  |
Increase in exploration and evaluation assets | 24 | 293
Balance at the end of the year | 233 | 1,431
Exploration and Evaluation Assets Arising From Exploration [Member] | Canada [Member] | Halcyon Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 209 | 187
Administration | 1 | 2
Corporate social responsibility | 1 | 1
Property maintenance | 7 | 2
Drilling expenses |  |
Environment, health & safety |  |
Geology | 14 | 17
Geophysics | 1 |
Camp operations |  |
Helicopter charter aircraft |  |
Infrastructure |  |
Write-off |  |
Technical studies |  |
Increase in exploration and evaluation assets | 24 | 22
Balance at the end of the year | 233 | 209
Exploration and Evaluation Assets Arising From Exploration [Member] | Canada [Member] | Quetico Claims [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 22 |
Administration |  | 1
Corporate social responsibility |  |
Property maintenance |  |
Drilling expenses | 12 |
Environment, health & safety |  |
Geology | 1 | 20
Geophysics | 4 | 1
Camp operations |  |
Helicopter charter aircraft |  |
Infrastructure |  |
Write-off |  |
Technical studies |  |
Increase in exploration and evaluation assets | 17 | 22
Balance at the end of the year | 39 | 22
Exploration and Evaluation Assets Arising From Exploration [Member] | Canada [Member] | Enid Creek [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Administration |  |
Corporate social responsibility |  |
Property maintenance |  |
Drilling expenses |  |
Environment, health & safety | 15 |
Geology |  |
Geophysics | 15 |
Camp operations | 3 |
Helicopter charter aircraft |  |
Infrastructure |  |
Write-off |  |
Increase in exploration and evaluation assets | 33 |
Balance at the end of the year | 33 |
Exploration and Evaluation Assets Arising From Exploration [Member] | Canada [Member] | Lingman Lake [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year |  |
Administration |  |
Corporate social responsibility |  |
Property maintenance |  |
Drilling expenses |  |
Environment, health & safety | 5 |
Geology |  |
Geophysics | 6 |
Helicopter charter aircraft |  |
Infrastructure |  |
Write-off |  |
Increase in exploration and evaluation assets | 13 |
Balance at the end of the year | 13 |
Exploration and Evaluation Assets Arising From Exploration [Member] | United States [Member] | Section 35 Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year |  |
Administration |  |
Corporate social responsibility |  |
Property maintenance |  |
Drilling expenses |  |
Environment, health & safety |  |
Geology |  |
Geophysics |  |
Camp operations |  |
Helicopter charter aircraft |  |
Infrastructure |  |
Write-off |  |
Technical studies |  |
Increase in exploration and evaluation assets | (11) |
Balance at the end of the year | (11) |
Exploration and Evaluation Assets Arising From Exploration [Member] | Greenland [Member] | Maniitsoq Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 62,215 | 42
Administration | 12 | 486
Corporate social responsibility |  | 58
Property maintenance | 17 | 18
Drilling expenses | 197 | 4,270
Environment, health & safety | 8 | 135
Geology | 140 | 662
Geophysics | 28 | 824
Camp operations |  | 2,943
Helicopter charter aircraft | (21) | 4,138
Infrastructure | 11 | 31
Write-off | (26,499) |
Technical studies |  | 15
Increase in exploration and evaluation assets | (26,107) | 13,580
Balance at the end of the year | $ 36,108 | $ 62,215

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