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POST EMPLOYMENT BENEFITS (Details) $ in Thousands | Dec. 31, 2021 CAD ($) | Dec. 31, 2020 CAD ($) | Dec. 31, 2020 USD ($) | Nov. 30, 2020 CAD ($) | Nov. 30, 2019 CAD ($)
--- | --- | --- | --- | --- | ---
Statement [Line Items] |  |  |  |  |
Current post-employment benefits | $ 120 | $ 120 |  |  |
Post-employment benefits (note 12) | 1,154 | 1,241 |  |  |
Total post-employment benefits | 1,274 |  | $ 1,361 | $ 1,361 | $ 2,258
Defined Benefit Plans1 [Member] |  |  |  |  |
Statement [Line Items] |  |  |  |  |
Total post-employment benefits | $ 1,274 | $ 1,361 |  |  |

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