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Note 15 - Receivables and Prepayments, Net (Tables)
 12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of detailed information about receivables and prepayments [text block]
    Year ended December 31,
    2019   2018
Prepaid expenses and other receivables    
30,579
      
31,599
  
Government entities    
1,867
      
2,182
  
Employee advances and loans    
8,189
      
6,521
  
Advances to suppliers and other advances    
17,180
      
23,467
  
Government tax refunds on exports    
670
      
4,896
  
Receivables from related parties    
19,837
      
63,322
  
Miscellaneous    
31,145
      
30,682
  
     
109,467
      
162,669
  
Allowance for other doubtful accounts (see Note 23 (i))    
(4,892
 )    
(6,784
 )
     
104,575
      
155,885