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FINANCIAL EXPENSES, NET (Tables)
12 Months Ended
Dec. 31, 2017
Interest Expense [Abstract]  
Schedule Of Financial Expenses, Net
   
Year ended
December 31,
 
   
2017
   
2016
   
2015
 
   
US Dollars in thousands
 
                   
Interest and exchange rate expenses on  long-term loans
   
88
     
146
     
134
 
Expenses on  short-term credit and bank charges
   
174
     
158
     
143
 
Effect of exchange rate differences on other  expenses and net loss from derivative instruments
   
-
     
(31
)
   
(59
)
Other financing expenses, net
   
36
     
36
     
41
 
                         
     
298
     
309
     
259