| Transactions and Balances with Related Parties (Details) ₪ in Thousands | 12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2017  ILS (₪)  Directors | Dec. 31, 2016  ILS (₪)  Directors | Dec. 31, 2015  ILS (₪)  Directors | ||||||
| Transactions and Balances with Related Parties [Abstract] | ||||||||
| CEO's salary | [1] | ₪ 1,988 | ₪ 2,010 | ₪ 1,804 | ||||
| Share-based payments portion | 455 | 1,066 | 963 | |||||
| Remuneration of directors | [2] | 613 | 1,214 | 3,513 | ||||
| Share-based payments portion | ₪ 279 | ₪ 558 | ₪ 2,455 | |||||
| Number of directors | Directors | 6 | 6 | 5 | |||||
| 
 | ||||||||
| X | ||||||||||
| 
- Definition The amount of remuneration paid or payable to the entity's directors related share based payments. No definition available. 
 | 
| X | ||||||||||
| 
- Definition The number of personnel directors by the entity at a date. No definition available. 
 | 
| X | ||||||||||
| 
- Definition A class of employee benefits expense that represents wages and salaries related parties share based payments. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Transactions and Balances with Related Parties [Abstarct] No definition available. 
 | 
| X | ||||||||||
| 
- Definition The amount of remuneration paid or payable to the entity's directors. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
 | 
| X | ||||||||||
| 
- Definition A class of employee benefits expense that represents wages and salaries. [Refer: Employee benefits expense] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
 |