Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Cash and Cash Equivalents (Details)

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Cash and Cash Equivalents (Details)
₪ in Thousands, $ in Thousands
Dec. 31, 2017
ILS (₪)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
ILS (₪)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
ILS (₪)
Dec. 31, 2014
ILS (₪)
Breakdown By Currency [Line Items]            
Cash and cash equivalents, net ₪ 17,817 $ 5,139 ₪ 3,797 $ 1,094 ₪ 5,317 ₪ 11,062
NIS [Member]            
Breakdown By Currency [Line Items]            
Cash and cash equivalents, net | ₪ ₪ 9,654   ₪ 2,473      
US Dollars [Member]            
Breakdown By Currency [Line Items]            
Cash and cash equivalents, net | $   $ 8,163   $ 1,324