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Note 19 - Inventories (Tables)
 12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of components of inventories [text block]
    2019     2018  
             
Consumable stores    
10,716
      
9,210
  
Gold in process    
376
      
217
  
     
11,092
      
9,427