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RECLAMATION OBLIGATIONS (Details Narrative) - CAD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Elliot Lake |  |
DisclosureOfReclamationObligationsLineItems [Line Items] |  |
Undiscounted amount of estimated future reclamation costs | $ 32,335 | $ 31,604
McClean And Midwest Joint Ventures |  |
DisclosureOfReclamationObligationsLineItems [Line Items] |  |
Undiscounted amount of estimated future reclamation costs | $ 24,135 | $ 23,685

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