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Contributed Surplus (Tables)
 12 Months Ended
Dec. 31, 2022
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,
   
2022
     2021  
     
Balance, January 1
   
$
658,615
 
   $ 656,832    
     
Share-based compensation
   
 
1,558
 
     1,783  
     
Exercise of stock options
   
 
(101
) 
     -  
     
Closing balance
   
$
            660,072
 
   $           658,615