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Capital Stock (Tables)
3 Months Ended
Mar. 31, 2022
Stockholders' Equity Note [Abstract]  
Schedule of Stock by Class [Table Text Block]
    March 31,
2022
    December 31,
2021
 
             
Authorized -            
             
450,000,000 common shares of $0.00001 par value            
20,000,000 preferred shares of $0.00001 par value            
             
Issued -            
             
154,651,289 (December 31, 2021 - 154,571,289) common shares $ 1   $ 1  
Schedule of Proceeds of Equity Components [Table Text Block]
    Gross proceeds     Transaction costs     Net proceeds  
Common stock $ 8,695   $ 297   $ 8,398  
Warrants   3,651     125     3,526  
  $ 12,346   $ 422   $ 11,924