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INVESTMENTS IN AFFILIATED AND OTHER COMPANIES (Tables)
12 Months Ended
Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of investment in affiliated companies
Investment in affiliated companies
 
   
US dollars
 
   
December 31,
 
(in thousands)
 
2018
   
2017
 
Bringg (see 1 below)
   
4,823
     
6,090
 
Lumax
   
49
     
-
 
RTI (see 2.2 below)
   
-
     
4,621
 
IRT (see 2.1 below)
   
-
     
2,734
 
IRTA (see 2.3 below)
   
-
     
(301
)
HK (see 2.4 below)
   
-
     
1,695
 
     
4,872
     
14,839