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Note 22 - Non-current Allowances and Provisions (Tables)
 12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of detailed information about non-current allowances and provisions deducted from non-current receivables [text block]
    Year ended December 31,
    2019   2018
     
Values at the beginning of the year    
-
      
(641
 )
Translation differences    
-
      
110
  
Used    
-
      
531
  
Values at the end of the year    
-
      
-
  
Disclosure of detailed information about non-current allowances and provisions from liabilities [text block]
    Year ended December 31,
    2019   2018
Values at the beginning of the year    
36,089
      
36,438
  
Translation differences    
(1,571
 )    
(5,261
 )
Additional provisions    
19,904
      
14,397
  
Reclassifications    
5,641
      
(2,406
 )
Used    
(5,464
 )    
(7,079
 )
Values at the end of the year    
54,599
      
36,089