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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