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RECLAMATION OBLIGATIONS (Details Narrative) - CAD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Elliot Lake |  |
DisclosureOfReclamationObligationsLineItems [Line Items] |  |
Undiscounted amount of estimated future reclamation costs | $ 31,604 | $ 32,957
McClean And Midwest Joint Ventures |  |
DisclosureOfReclamationObligationsLineItems [Line Items] |  |
Undiscounted amount of estimated future reclamation costs | $ 23,685 | $ 23,275

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