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Note 20 - Costs of Sales
 12 Months Ended
Dec. 31, 2019
Notes to Financial Statements  
Costs of Sales [Text Block]
20—
COSTS OF SALES
 
Costs of sales consist of the following:
 
    2019   2018   2017
Direct costs of sales    
(14,919
 )    
(13,683
 )    
(12,706
 )
Indirect costs of sales    
(8,990
 )    
(8,583
 )    
(8,232
 )
Total costs of sales    
(23,909
 )    
(22,266
 )    
(20,938
 )