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OTHER NON-CURRENT ASSETS (Tables)
12 Months Ended
Dec. 31, 2016
Prepaid Expense and Other Assets, Noncurrent [Abstract]  
Schedule of Other Non-Current Assets
   
US dollars
 
   
December 31,
 
(in thousands)
 
2016
   
2015
 
             
Deferred installation expenses
   
682
     
488
 
Deposits
   
833
     
678
 
     
1,515
     
1,166