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Note 10 - Other Income (Tables)
 12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of other operating income components [text block]
    2019   2018   2017
             
Government grant – Gold sale export incentive    
866
      
6,482
      
2,446
  
Government grant – Gold support price    
1,064
      
-
      
-
  
Other    
94
      
39
      
148
  
Greenstone Retirement Fund pay-out    
250
      
-
      
-
  
Greenstone Provident Fund pay-out    
-
      
363
      
-
  
Eersteling rock dump sale    
-
      
217
      
-
  
     
2,274
      
7,101
      
2,594