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Leases - Schedule of Right-of-use asset (Detail) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure of quantitative information about right-of-use assets [line items]    
Right-of-use assets, beginning of period $ 1,933 $ 2,640
Additions 246 0
Depreciation (705) (707)
Balance, end of period $ 1,474 $ 1,933