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SUPPLEMENTAL FINANCIAL INFORMATION (Details 3) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
DisclosureOfDepreciationExpenseLineItems [Line Items]    
Depreciation expense $ (3,764) $ (3,661)
Mining, other development expense    
DisclosureOfDepreciationExpenseLineItems [Line Items]    
Depreciation expense (3) (3)
Milling, conversion expense    
DisclosureOfDepreciationExpenseLineItems [Line Items]    
Depreciation expense (3,165) (3,264)
Cost of services    
DisclosureOfDepreciationExpenseLineItems [Line Items]    
Depreciation expense (248) (233)
Exploration and evaluation    
DisclosureOfDepreciationExpenseLineItems [Line Items]    
Depreciation expense (221) (124)
General and administrative    
DisclosureOfDepreciationExpenseLineItems [Line Items]    
Depreciation expense $ (127) $ (37)