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Note 16 - Current Tax Assets and Liabilities (Tables)
12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of detailed information about current tax assets [text block]
    Year ended December 31,
Current tax assets   2019   2018
V.A.T. credits    
112,161
     
67,322
 
Prepaid taxes    
55,227
     
54,010
 
     
167,388
     
121,332
 
Disclosure of detailed information about tax liabilities [text block]
    Year ended December 31,
Current tax liabilities   2019   2018
Income tax liabilities    
64,994
     
182,711
 
V.A.T. liabilities    
9,953
     
18,091
 
Other taxes    
52,678
     
49,431
 
     
127,625
     
250,233