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OTHER OPERATING (Details)
$ in Thousands
 9 Months Ended
Sep. 30, 2020
USD ($)
Shut Down Costs [Line Items]  
Costs incurred while operations were suspended $ 1,968
Costs incurred in review of resources 500
Gold Bar mine  
Shut Down Costs [Line Items]  
Costs incurred while operations were suspended 900
Black Fox  
Shut Down Costs [Line Items]  
Costs incurred while operations were suspended $ 600