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Note 34 - Related Parties (Tables)
12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of information about key management personnel [text block]
    2019     2018     2017  
Key management salaries and bonuses    
2,362
     
2,476
     
2,041
 
Cash-settled share-based expense
*
   
723
     
261
     
1,164
 
     
3,085
     
2,737
     
3,205