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SUPPLEMENTAL CASH FLOW INFORMATION (Details Narrative) - CAD ($) | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Supplemental Cash Flow Information |  |
Amount transferred from reserve to deficit | $ 97,953 | $ 2,812,376
Amount reserve to common share capital | 260,916 |
Accrued exploration and evaluation expenditures | 105,617 | 6,958
Advance to investment | $ 50,000 | 139,164
Reduction amount |  | $ 134,447

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- Definition Accrued Exploration And Evaluation Expenditures. + References No definition available. + Details
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Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Advance to investment. + References No definition available. + Details
Name: | WSCRF_AdvanceToInvestment
Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount removed from reserve and transferred to retained earnings. + References No definition available. + Details
Name: | WSCRF_AmountRemovedFromReserveTransferredToRetainedEarnings
Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount reserve to common share capital. + References No definition available. + Details
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Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | WSCRF_
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Balance Type: | na
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- Definition Receivable Reduction Amount. + References No definition available. + Details
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Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration