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Flow-through Share Premium Liability (Details) - CAD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
DisclosureOfFlowThroughSharePremiumLiabilityLineItems [Line Items] |  |
Balance, beginning of the year | $ 7 | $ 317
Flow-through liability assumed | 590 |
Flow-through funds raised | 7,500 | 557
Flow-through eligible expenditures | (453) | (867)
Balance, end of the year | 7,644 | 7
Québec |  |
DisclosureOfFlowThroughSharePremiumLiabilityLineItems [Line Items] |  |
Balance, beginning of the year | 0 | 0
Flow-through liability assumed | 2,391 |
Flow-through funds raised | 17,500 | 0
Flow-through eligible expenditures | (1,812) | 0
Balance, end of the year | 18,079 | 0
Nunavut |  |
DisclosureOfFlowThroughSharePremiumLiabilityLineItems [Line Items] |  |
Balance, beginning of the year | 24 | 433
Flow-through liability assumed | 0 |
Flow-through funds raised | 0 | 1,900
Flow-through eligible expenditures | (24) | (2,309)
Balance, end of the year | 0 | 24
British Columbia |  |
DisclosureOfFlowThroughSharePremiumLiabilityLineItems [Line Items] |  |
Balance, beginning of the year | 0 | 737
Flow-through liability assumed | 0 |
Flow-through funds raised | 0 | 0
Flow-through eligible expenditures | 0 | (737)
Balance, end of the year | 0 | 0
Total |  |
DisclosureOfFlowThroughSharePremiumLiabilityLineItems [Line Items] |  |
Balance, beginning of the year | 24 | 1,170
Flow-through liability assumed | 2,391 |
Flow-through funds raised | 17,500 | 1,900
Flow-through eligible expenditures | (1,836) | (3,046)
Balance, end of the year | $ 18,079 | $ 24

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