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Short-Term Bank Loans (Tables)
12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]  
Schedule of short-term bank loans
   Interest rate
as of
December 31,
      Total short-term liabilities 
   2018   Linkage  December 31, 
   %   basis  2018   2017 
Due to banks   Prime plus 2.45%
Prime plus 2.5%
   NIS  $2,330   $951 
Current portion           476    631 
           $2,806   $1,582