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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2017
Accounting Policies [Abstract] |
Schedule of Relevant Exchange Rates of US Dollar and Israeli CPI | The following table presents data regarding the dollar exchange rate of relevant currencies and the Israeli CPI:
|  | Exchange rate of one US dollar |  |  | Israeli CPI(*) |
|  | NIS |  |  | Real |  |  | Pezo |  |  |  |
At December 31, |  |  |  |  |  |  |  |  |  |  |  |
2017 |  |  | 3.467 |  |  |  | 3.3080 |  |  |  | 18.774 |  |  | 113.05 points |
2016 |  |  | 3.845 |  |  |  | 3.2591 |  |  |  | 15.850 |  |  | 112.59 points |
2015 |  |  | 3.902 |  |  |  | 3.9048 |  |  |  | 13.005 |  |  | 112.82 points |
Increase (decrease) during the year: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 |  |  | (9.83 | )% |  |  | 1.50 | % |  |  | 18.45 | % |  |  | 0.4 | %
2016 |  |  | (1.46 | )% |  |  | (16.54) | % |  |  | 21.87 | % |  |  | (0.2 | )%
2015 |  |  | 0.33 | % |  |  | 47.01 | % |  |  | 52.07 | % |  |  | (1.0 | )%
| (*) | Based on the Index for the month ending on each balance sheet date, on the basis of 2008 average 100.
Schedule of Depreciation Rates |
Rates of depreciation:
| %
Operating equipment (mainly 20%-33%) | 6.5-33
Office furniture, equipment and computers | 7-33
Buildings | 2.5
Vehicles | 15
Leasehold improvements | Duration of the lease which is less or equal to useful life.

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