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Exploration and Evaluation Assets - Schedule of Exploration and Evaluation Assets (Details) - CAD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | $ 64,479 | $ 50,494
Acquisition costs - cash |  |
Administration |  |
Corporate social responsibility |  |
Drilling expenses |  |
Environment, health & safety |  |
Geology |  |
Geophysics |  |
Helicopter charter aircraft |  |
Infrastructure |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 64,738 | 50,907
Canada [Member] | Post Creek Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 1,737 | 1,436
Canada [Member] | Halcyon Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 438 | 412
Canada [Member] | Quetico Claims [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 64 |
United States [Member] | Section 35 Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 11 | 8
Greenland [Member] | Maniitsoq Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 62,488 | 49,051
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 | 10 | 25
Balance at the end of the year | 612 | 559
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 | 5 | 5
Balance at the end of the year | 293 | 283
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 | 4 | 4
Balance at the end of the year | 226 | 218
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 |  |
Balance at the end of the year | 42 |
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 | 1 | 2
Balance at the end of the year | 9 | 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 |  | 14
Balance at the end of the year | 42 | 50
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 | 49,960
Administration | 1 | 15
Corporate social responsibility | 1 |
Drilling expenses | 127 | 209
Environment, health & safety | 8 |
Geology | 85 | 108
Geophysics | 27 | 40
Helicopter charter aircraft |  | 3
Infrastructure |  | 13
Increase in exploration and evaluation assets | 249 | 388
Balance at the end of the year | 64,126 | 50,348
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 |
Corporate social responsibility | 1 |
Drilling expenses | 7 | 5
Environment, health & safety |  |
Geology | 4 | 10
Geophysics |  |
Helicopter charter aircraft |  |
Infrastructure |  |
Increase in exploration and evaluation assets | 13 | 15
Balance at the end of the year | 1,444 | 1,153
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 |  |
Corporate social responsibility |  |
Drilling expenses |  |
Environment, health & safety |  |
Geology | 3 | 7
Geophysics |  |
Helicopter charter aircraft |  |
Infrastructure |  |
Increase in exploration and evaluation assets | 3 | 7
Balance at the end of the year | 212 | 194
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 |  |
Corporate social responsibility |  |
Drilling expenses |  |
Environment, health & safety |  |
Geology |  |
Geophysics |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 22 |
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 |  |
Drilling expenses |  |
Environment, health & safety |  |
Geology | 2 |
Geophysics |  |
Helicopter charter aircraft |  |
Infrastructure |  |
Increase in exploration and evaluation assets | 2 |
Balance at the end of the year | 2 |
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 | 48,635
Administration |  | 15
Corporate social responsibility |  |
Drilling expenses | 120 | 204
Environment, health & safety | 8 |
Geology | 76 | 91
Geophysics | 27 | 40
Helicopter charter aircraft |  | 3
Infrastructure |  | 13
Increase in exploration and evaluation assets | 231 | 366
Balance at the end of the year | $ 62,446 | $ 49,001

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