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Note 23 - Current Allowances and Provisions
 12 Months Ended
Dec. 31, 2017
Statement Line Items [Line Items]  
Disclosure of current allowances and provisions [text block]
23
 Current allowances and provisions
 
(i)
Deducted from assets
 
Year ended December 31, 2017   Allowance for doubtful accounts - Trade receivables     Allowance for other doubtful accounts - Other receivables     Allowance for inventory obsolescence  
                   
Values at the beginning of the year    
(85,724
 )    
(6,332
 )    
(240,242
 )
Translation differences    
(345
 )    
(220
 )    
(3,575
 )
Reversals / (additional) allowances    
5,421
      
(84
 )    
12,917
  
Used    
2,263
      
381
      
14,832
  
At December 31, 2017    
(78,385
 )    
(6,255
 )    
(216,068
 )
 
 
Year ended December 31, 2016   Allowance for doubtful accounts - Trade receivables     Allowance for other doubtful accounts - Other receivables     Allowance for inventory obsolescence  
                   
Values at the beginning of the year    
(101,480
 )    
(7,082
 )    
(229,200
 )
Translation differences    
(841
 )    
75
      
(2,715
 )
Reversals / (additional) allowances    
12,573
      
(432
 )    
(32,765
 )
Transfer to held for sale    
20
      
-
      
896
  
Used    
4,004
      
1,107
      
23,542
  
At December 31, 2016    
(85,724
 )    
(6,332
 )    
(240,242
 )
 
(ii)
Liabilities
 
Year ended December 31, 2017   Sales risks     Other claims and contingencies     Total  
                   
Values at the beginning of the year    
13,885
      
8,871
      
22,756
  
Translation differences    
247
      
227
      
474
  
Additional provisions    
4,238
      
9,432
      
13,670
  
Reclassifications    
-
      
7,591
      
7,591
  
Used    
(6,974
 )    
(5,187
 )    
(12,161
 )
At December 31, 2017    
11,396
      
20,934
      
32,330
  
 
Year ended December 31, 2016   Sales risks     Other claims and contingencies     Total  
                   
Values at the beginning of the year    
6,290
      
2,705
      
8,995
  
Translation differences    
189
      
(86
 )    
103
  
Additional provisions    
16,266
      
7,791
      
24,057
  
Reclassifications    
(22
 )    
1,954
      
1,932
  
Used    
(8,838
 )    
(3,493
 )    
(12,331
 )
At December 31, 2016    
13,885
      
8,871
      
22,756