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COMMITMENTS AND CONTINGENCIES (Details Narrative) - CAD ($) |  | 9 Months Ended
--- | --- | ---
Jul. 01, 2014 | Sep. 30, 2021 | Sep. 30, 2020
IfrsStatementLineItems [Line Items] |  |  |
Management fees, per month |  | $ 30,951 | $ 16,907
Agreement termination period from the date of effective control change |  | 90 days |
Payment period |  | 30 days |
Independent Directors [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Director fees, stipend per month | $ 2,000 |  |
Chairman Of Board [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Director fees, stipend per month | 3,000 |  |
Committee Chairmen [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Director fees, stipend per month | $ 2,500 |  |

X
- Definition Represents the agreement termination period from the date of effective control change. + References No definition available. + Details
Name: | WSCRF_AgreementTerminationPeriodFromDateOfEffectiveControlChange
Namespace Prefix: | WSCRF_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | WSCRF_IfrsStatementLineItems
Namespace Prefix: | WSCRF_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of the monthly management fees paid. + References No definition available. + Details
Name: | WSCRF_MonthlyManagementFee
Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the amount of the monthly stipend paid. + References No definition available. + Details
Name: | WSCRF_MonthlyStipend
Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the payment period during which the company shall pay the party the money due and accrued through the effective date of termination. + References No definition available. + Details
Name: | WSCRF_PaymentPeriod
Namespace Prefix: | WSCRF_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=WSCRF_IndependentDirectorsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=WSCRF_ChairmanOfBoardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=WSCRF_CommitteeChairmenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |