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

Accounts Receivable and Prepaid Expenses (Details)

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Accounts Receivable and Prepaid Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Statement Line Items [Line Items]    
Total $ 3,378  
NIS [Member]    
Statement Line Items [Line Items]    
Government authorities 227 $ 84
Prepaid expenses and others 11,484 7,580
Total $ 11,711 $ 7,664