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Note 5 - Other Operating Income and Expenses
 12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of other operating income (expense) [text block]
5
Other operating income and expenses
 
    Year ended December 31,  
(all amounts in thousands of U.S. dollars)   2019     2018     2017  
             
Other operating income                        
Net income from other sales    
8,651
      
3,604
      
4,395
  
Net rents    
5,089
      
4,909
      
4,325
  
Other    
8,025
      
6,546
      
1,796
  
Recovery on allowance for doubtful receivables    
1,239
      
-
      
-
  
     
23,004
      
15,059
      
10,516
  
                         
Other operating expenses                        
Contributions to welfare projects and non-profits organizations    
11,199
      
11,379
      
9,158
  
Loss on fixed assets and material supplies disposed / scrapped    
-
      
-
      
118
  
Allowance for doubtful receivables    
-
      
1,179
      
84
  
     
11,199
      
12,558
      
9,360
  
From discontinued operations    
-
      
-
      
(1
 )
     
11,199
      
12,558
      
9,359