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Exploration and Evaluation Assets - Schedule of Exploration and Evaluation Assets (Details) - CAD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year |  |
Acquisition costs - cash |  |
Administration |  |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance |  |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology |  |
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 63,080 | 48,970
Canada [Member] | Post Creek Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 1,459 | 1,406
Canada [Member] | Halcyon Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 428 | 393
Canada [Member] | Quetico Claims [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 61 |
US [Member] | Section 35 Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 8 | 6
Greenland [Member] | Maniitsoq Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the end of the year | 61,852 | 47,165
Exploration and Evaluation Assets Arising From Acquisition [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 534 | 497
Acquisition costs - cash | 78 | 37
Administration |  |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance |  |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology |  |
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 612 | 534
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 | 278 | 268
Acquisition costs - cash | 10 | 10
Administration |  |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance |  |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology |  |
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 288 | 278
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 | 214 | 206
Acquisition costs - cash | 8 | 8
Administration |  |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance |  |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology |  |
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 222 | 214
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 |  |
Acquisition costs - cash | 40 |
Administration |  |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance |  |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology |  |
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 40 |
Exploration and Evaluation Assets Arising From Acquisition [Member] | US [Member] | Section 35 Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 6 | 3
Acquisition costs - cash | 2 | 3
Administration |  |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance |  |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology |  |
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 8 | 6
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 | 36 | 20
Acquisition costs - cash | 18 | 16
Administration |  |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance |  |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology |  |
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 54 | 36
Exploration and Evaluation Assets Arising From Exploration [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year | 49,960 | 37,845
Administration | 482 | 403
Corporate social responsibility | 59 | 33
Environment, health & safety | 137 | 92
Property maintenance | 20 | 7
Drilling | 3,922 | 2,969
Camp operations | 2,942 | 2,305
Helicopter charter aircraft | 4,168 | 2,993
Geology | 694 | 608
Geophysics | 762 | 950
Infrastructure | 31 | 183
Technical studies | 19 | 48
Increase in exploration and evaluation assets | 13,236 | 10,591
Balance at the end of the year | 63,196 | 48,436
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 | 1,138 | 1,085
Administration | 2 |
Corporate social responsibility | 1 |
Environment, health & safety |  |
Property maintenance | 1 |
Drilling | 5 |
Camp operations |  |
Helicopter charter aircraft |  |
Geology | 24 | 40
Geophysics |  | 1
Infrastructure |  |
Technical studies |  | 2
Increase in exploration and evaluation assets | 33 | 43
Balance at the end of the year | 1,171 | 1,128
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 | 187 | 173
Administration | 2 |
Corporate social responsibility | 1 |
Environment, health & safety |  |
Property maintenance | 1 |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology | 15 | 6
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets | 19 | 6
Balance at the end of the year | 206 | 179
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 |  |
Administration | 2 |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance | 1 |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology | 17 |
Geophysics | 1 |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets | 21 |
Balance at the end of the year | 21 |
Exploration and Evaluation Assets Arising From Exploration [Member] | US [Member] | Section 35 Property [Member] |  |
Disclosure of Exploration and Evaluation Assets [Line Items] |  |
Balance at the beginning of the year |  |
Administration |  |
Corporate social responsibility |  |
Environment, health & safety |  |
Property maintenance |  |
Drilling |  |
Camp operations |  |
Helicopter charter aircraft |  |
Geology |  |
Geophysics |  |
Infrastructure |  |
Technical studies |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the year | 8 |
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 | 48,635 | 36,587
Administration | 476 | 403
Corporate social responsibility | 57 | 33
Environment, health & safety | 137 | 92
Property maintenance | 17 | 7
Drilling | 3,917 | 2,969
Camp operations | 2,942 | 2,305
Helicopter charter aircraft | 4,168 | 2,993
Geology | 638 | 562
Geophysics | 761 | 949
Infrastructure | 31 | 183
Technical studies | 19 | 46
Increase in exploration and evaluation assets | 13,163 | 10,542
Balance at the end of the year | $ 61,798 | $ 47,129

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