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PROPERTY AND EQUIPMENT (Tables)
12 Months Ended
Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [abstract]  
Disclosure of detailed information about property, plant and equipment [Table Text Block]
    Computer     Field     Office     Building     Land     Total  
                                     
Cost                                    
  As at December 31, 2018 $ 110   $ 87   $ 2   $ 599   $ 419   $ 1,217  
    Additions       75         124         199  
  As at December 31, 2019   110     162     2     723     419     1,416  
    Additions       165                 165  
    Disposals and derecognition   (59 )   (5 )               (64 )
  As at December 31, 2020 $ 51   $ 322   $ 2   $ 723   $ 419   $ 1,517  
                                     
Accumulated depreciation                                    
  As at December 31, 2018 $ 110   $ 60   $ 2   $ 579   $   $ 751  
    Additions       20         1         21  
  As at December 31, 2019   110     80     2     580         772  
    Additions       37         26         63  
    Disposals and derecognition   (59 )   (5 )               (64 )
  As at December 31, 2020 $ 51   $ 112   $ 2   $ 606   $   $ 771  
                                     
Net book value                                    
  As at December 31, 2019 $   $ 82   $   $ 143   $ 419   $ 644  
  As at December 31, 2020 $   $ 210   $   $ 117   $ 419   $ 746