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Note 27 - Loans and Borrowings (Tables)
 12 Months Ended
Dec. 31, 2018
Statement Line Items [Line Items]  
Disclosure of detailed information about borrowings [text block]
    2018     2017     2016  
                   
Balance at January 1    
1,486
      
2,987
      
—  
  
Cash flows                        
Repayment                        
- Capital    
(1,500
 )    
(1,500
 )    
—  
  
- Interest    
(58
 )    
(156
 )    
—  
  
Proceeds    
6,000
      
—  
      
3,000
  
Transaction cost    
(60
 )    
—  
      
(73
 )
                         
Non-cash flows                        
Interest    
92
      
155
      
60
  
Balance at December 31    
5,960
      
1,486
      
2,987
  
                         
Long-term portion of term loan facility    
5,960
      
—  
      
1,577
  
Short-term portion of term loan facility    
—  
      
1,486
      
1,410