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Share Capital, Warrants and Options - Schedule of Number and Weighted Average Remaining Contractual Life of Outstanding Warrants (Details) | 6 Months Ended
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Jun. 30, 2020 EquityInstruments $ / shares
Disclosure of Warrants Outstanding [Line Items] |
Warrants outstanding | 3,984,731
Weighted average remaining contractual life (years) | 1 year 5 months 20 days
Warrants Expiring December 18, 2021 [Member] |
Disclosure of Warrants Outstanding [Line Items] |
Warrants outstanding | 3,984,731
Exercise price | $ / shares | $ 0.25
Weighted average remaining contractual life (years) | 1 year 5 months 20 days

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. References + References No definition available. + Details
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- Definition Exercise price of warrant. + References No definition available. + Details
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Namespace Prefix: | WSCRF_
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Balance Type: | na
Period Type: | instant

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- Definition Warrants outstanding. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Weighted average remaining contractual life of outstanding warrants. + References No definition available. + Details
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Namespace Prefix: | WSCRF_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |