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POST-EMPLOYMENT BENEFITS - Balance (Details) - CAD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
POST-EMPLOYMENT BENEFITS      
Current post-employment benefits $ 120 $ 120  
Non-current post-employment benefits 1,081 1,154  
Total post-employment benefits 1,201 1,274 $ 1,361
Defined Benefit Plan      
POST-EMPLOYMENT BENEFITS      
Total post-employment benefits $ 1,201 $ 1,274