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TRADE AND SETTLEMENT RECEIVABLES, AND OTHER ASSETS (Tables)
 12 Months Ended
Dec. 31, 2020
Trade and other receivables [abstract]  
Disclosure of detailed information about current receivables [Table Text Block]
Category   December 31, 2020     December 31, 2019  
Royalty income receivable $ 66   $ 15  
Refundable taxes   1,723     174  
Recoverable exploration expenditures and advances   679     460  
Other   408     332  
Total $ 2,876   $ 981  
Disclosure of detailed information about currency of receivables [Table Text Block]
Currency   December 31, 2020     December 31, 2019  
Canadian Dollars $ 243   $ 158  
US Dollars   367     453  
Swedish Krona   2,266     370  
Total $ 2,876   $ 981