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

General (Details)

v3.8.0.1
General (Details)
$ in Thousands
12 Months Ended
Sep. 06, 2017
USD ($)
Dec. 31, 2017
ILS (₪)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
ILS (₪)
Dec. 31, 2015
ILS (₪)
General Accounting Principal [Line Items]          
Research and development expense   ₪ 16,921,000 $ 4,881 ₪ 29,200,000 ₪ 22,919,000
Rate of exchange   ₪ 3,467 $ 1    
Securities Purchase Agreements [Member]          
General Accounting Principal [Line Items]          
Research and development expense $ 600        
Proceeds received from securities $ 1,000