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Contributed Surplus (Tables)
 12 Months Ended
Dec. 31, 2023
Disclosure of Contribution surplus [Abstract]  
Summary of Contribution surplus
Contributed surplus consists of accumulated stock option expense less the fair value of the options at the grant date that have been exercised and reclassified to share capital. Changes in contributed surplus were as follows:
 
December 31,
   
2023
      2022  
Opening balance
   
$
660,072
 
    $ 658,615  
Share-based compensation
   
 
450
 
      1,558  
Exercise of stock options
   
 
(492)
 
      (101)  
Closing balance
   
$
  660,030
 
    $   660,072