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INVESTMENTS (Details) - CAD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
DisclosureOfInvestmentsLineItems [Line Items] |  |  |
Current investments | $ 16,657 | $ 0 |
Noncurrent investments | 293 | 12,104 |
Total investments | 16,950 | 12,104 | $ 2,255
Equity Instruments-Fair Value Through Profit and Loss |  |  |
DisclosureOfInvestmentsLineItems [Line Items] |  |  |
Total investments | $ 16,950 | $ 12,104 |

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