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SCHEDULE OF EXPLORATION AND EVALUATION ASSETS (Details) - CAD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
IfrsStatementLineItems [Line Items] |  |
Balance at the end of the period | $ 39,161 | $ 38,806
CANADA | Post Creek Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the end of the period | 1,856 | 1,833
CANADA | Halcyon Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the end of the period | 507 | 486
CANADA | Quetico Claims [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the end of the period | 196 | 184
CANADA | Loveland (Enid Creek) Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the end of the period |  |
GREENLAND | Lingman Lake [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the end of the period | 27 | 27
GREENLAND | Maniitsoq Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the end of the period | 36,575 | 36,276
Exploration And Evaluation Assets Arising From Acquisition [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 648 | 709
Acquisition costs - cash | 30 | 22
Balance at the end of the period | 678 | 731
Exploration And Evaluation Assets Arising From Acquisition [Member] | CANADA | Post Creek Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 308 | 298
Acquisition costs - cash | 10 | 10
Balance at the end of the period | 318 | 308
Exploration And Evaluation Assets Arising From Acquisition [Member] | CANADA | Halcyon Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 238 | 230
Acquisition costs - cash | 8 | 8
Balance at the end of the period | 246 | 238
Exploration And Evaluation Assets Arising From Acquisition [Member] | CANADA | Quetico Claims [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period |  | 42
Acquisition costs - cash |  |
Balance at the end of the period |  | 42
Exploration And Evaluation Assets Arising From Acquisition [Member] | GREENLAND | Quetico Claims [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 42 |
Acquisition costs - cash |  |
Balance at the end of the period | 42 |
Exploration And Evaluation Assets Arising From Acquisition [Member] | GREENLAND | Lingman Lake [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 14 | 14
Acquisition costs - cash |  |
Balance at the end of the period | 14 | 14
Exploration And Evaluation Assets Arising From Acquisition [Member] | GREENLAND | Maniitsoq Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 46 | 42
Acquisition costs - cash | 12 | 4
Balance at the end of the period | 58 | 46
Exploration And Evaluation Assets Arising From Acquisition [Member] | GREENLAND | Loveland (Enid Creek) Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period |  | 83
Acquisition costs - cash |  |
Balance at the end of the period |  | 83
Exploration And Evaluation Assets Arising From Exploration [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 38,455 | 37,924
Administration | 7 | 16
Property maintenance | 20 | 28
Camp operations | (95) |
Drilling | 32 | 172
Geology | 63 | 258
Geophysics | 1 | 106
Helicopter charter aircraft (recovery) |  | 8
Write-off |  | (437)
Increase in exploration and evaluation assets | 28 | 151
Balance at the end of the period | 38,483 | 38,075
Exploration And Evaluation Assets Arising From Exploration [Member] | CANADA | Post Creek Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 1,529 | 1,498
Administration |  |
Property maintenance | 1 | 6
Camp operations |  |
Drilling |  |
Geology | 8 | 19
Geophysics |  | 2
Helicopter charter aircraft (recovery) |  |
Write-off |  |
Increase in exploration and evaluation assets | 9 | 27
Balance at the end of the period | 1,538 | 1,525
Exploration And Evaluation Assets Arising From Exploration [Member] | CANADA | Halcyon Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 252 | 233
Administration |  |
Property maintenance | 1 | 5
Camp operations |  |
Drilling |  |
Geology | 8 | 9
Geophysics |  | 1
Helicopter charter aircraft (recovery) |  |
Write-off |  |
Increase in exploration and evaluation assets | 9 | 15
Balance at the end of the period | 261 | 248
Exploration And Evaluation Assets Arising From Exploration [Member] | CANADA | Quetico Claims [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period |  | 39
Administration |  |
Property maintenance |  |
Drilling |  | 6
Geology |  | 69
Geophysics |  | 28
Helicopter charter aircraft (recovery) |  |
Write-off |  |
Increase in exploration and evaluation assets |  | 103
Balance at the end of the period |  | 142
Exploration And Evaluation Assets Arising From Exploration [Member] | GREENLAND | Quetico Claims [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 142 |
Administration |  |
Property maintenance | 1 |
Camp operations |  |
Drilling |  |
Geology | 10 |
Geophysics | 1 |
Increase in exploration and evaluation assets | 12 |
Balance at the end of the period | 154 |
Exploration And Evaluation Assets Arising From Exploration [Member] | GREENLAND | Lingman Lake [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 13 | 13
Administration |  |
Property maintenance |  |
Camp operations |  |
Drilling |  |
Geology |  |
Geophysics |  |
Helicopter charter aircraft (recovery) |  |
Write-off |  |
Increase in exploration and evaluation assets |  |
Balance at the end of the period | 13 | 13
Exploration And Evaluation Assets Arising From Exploration [Member] | GREENLAND | Maniitsoq Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period | 36,519 | 36,108
Administration | 7 | 16
Property maintenance | 17 | 17
Camp operations | (95) |
Drilling | 32 |
Geology | 37 | 78
Geophysics |  | 3
Helicopter charter aircraft (recovery) |  | 8
Write-off |  |
Increase in exploration and evaluation assets | (2) | 122
Balance at the end of the period | $ 36,517 | 36,230
Exploration And Evaluation Assets Arising From Exploration [Member] | GREENLAND | Loveland (Enid Creek) Property [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the period |  | 33
Administration |  |
Property maintenance |  |
Drilling |  | 166
Geology |  | 83
Geophysics |  | 72
Helicopter charter aircraft (recovery) |  |
Write-off |  | (437)
Increase in exploration and evaluation assets |  | (116)
Balance at the end of the period |  | $ (83)

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- Definition Increase through camp operations exploration and evaluation assets. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Increase through drilling expenses exploration and evaluation assets. + References No definition available. + Details
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Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
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Namespace Prefix: | WSCRF_
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Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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Balance Type: |
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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Namespace Prefix: |
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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