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Note 20 - Cash and Cash Equivalents (Tables)
 12 Months Ended
Dec. 31, 2018
Statement Line Items [Line Items]  
Disclosure of the components of cash and cash equivalents [text block]
    2018     2017  
             
Bank balances    
11,187
      
13,067
  
Cash and cash equivalents in the statement of financial position    
11,187
      
13,067
  
Bank overdrafts used for cash management purposes    
—  
      
(311
 )
Net cash and cash equivalents at year end    
11,187
      
12,756