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Note 18 - Cash and Cash Equivalents (Tables)
 12 Months Ended
Dec. 31, 2017
Statement Line Items [Line Items]  
Disclosure of the components of cash and cash equivalents [text block]
    2017     2016  
             
Bank balances    
13,067
      
14,335
  
Cash and cash equivalents in the statement of financial position    
13,067
      
14,335
  
Bank overdrafts used for cash management purposes    
(311
 )    
-
  
Net cash and cash equivalents at year end    
12,756
      
14,335