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

Significant Accounting Policies (Details Textual)

v3.8.0.1
Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Significant Accounting Policies (Textual)    
Foreign currency exchange rate 1.00  
Monthly deposits rate 8.33%  
Description of american depositary share Each ADS represents 2 ordinary shares of the Company.  
Treasury shares  
NIS [Member]    
Significant Accounting Policies (Textual)    
Foreign currency exchange rate 3.467  
Treasury shares $ 3,628