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SUPPLEMENTAL CASH FLOW INFORMATION (Details Narrative) - CAD ($) | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Supplemental Cash Flow Information |  |
Amount transferred from reserve to deficit | $ 97,953 | $ 2,771,485
Amount reserve to common share capital | 244,357 |
Accrued exploration and evaluation expenditures | 96,430 | 49,094
Advance to investment | $ 50,000 | $ 106,343

X
- Definition The amount of accrued expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References No definition available. + Details
Name: | WSCRF_AccruedExplorationAndEvaluationExpenditures
Namespace Prefix: | WSCRF_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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

X
- 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

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

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