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Note 9 - Trade Accounts and Notes Payable
 12 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
9—TRADE
ACCOUNTS AND NOTES PAYABLE
 
Trade accounts and notes payable consist of the following:
 
    December 31,
    2018   2017
Trade accounts payable    
6,286
      
6,220
  
Notes payable    
11
      
90
  
Total    
6,297
      
6,310
  
 
Trade accounts payable usually represent invoices with a due date of
90
days or less and invoices to be received.
 
Notes payable represent commercial bills of exchange (drafts) with initial maturities of
90
days or less.