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Key management (Tables)
12 Months Ended
Dec. 31, 2022
Disclosure Of Information About Key Management [Abstract]  
Disclosure of compensation, key management [Table Text Block]
    2022     2021  
    $     $  
             
Salaries and short-term employee benefits   4,374     4,309  
Share-based compensation   5,475     6,078  
Cost recoveries from associates   (538 )   (716 )
    9,311     9,671