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Fixed Assets (Tables)
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Components of Fixed Assets
Fixed assets consist of:
 
    
2021
      2020  
Cost
                  
Land
   
$
198
 
    $ 195  
Buildings
   
 
2,719
 
      2,709  
Machinery and equipment
   
 
17,355
 
      17,217  
    
 
 
     
 
 
  
    
 
20,272
 
      20,121  
Accumulated depreciation
                  
Buildings
   
 
(1,223
) 
      (1,147 ) 
Machinery and equipment
   
 
(10,756
) 
      (10,499 ) 
    
 
 
     
 
 
  
    
$
8,293
 
    $  8,475