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Related Party Transactions (Details Narrative) - CAD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Sentient [Member]
Disclosure of transactions between related parties [line items]
Number of common shares beneficially owned	36,980,982
Number of common shares beneficially owned, percentage	33.66%
Contemporary Amperex Technology Limited [Member]
Disclosure of transactions between related parties [line items]
Number of common shares beneficially owned	22,944,444
Number of common shares beneficially owned, percentage	20.89%
Former Chairman as Consultant [Member]
Disclosure of transactions between related parties [line items]
Fees charged by a legal firm	$ 11,230	$ 35,701

X

- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

+ Details

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Namespace Prefix:	WSCRF_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The amount of fees paid or payable to related party for professional services.

+ References

No definition available.

+ Details

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Namespace Prefix:	WSCRF_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Number of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

+ Details

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Namespace Prefix:	WSCRF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- 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

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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