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INCOME TAX AND DEFERRED TAX (Details) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Reduction in the applicable rate [Abstract] |  |  |
Income tax rate | 35.00% | 35.00% | 35.00%
Additional tax depending on dividends distributed at the rate of 30% | 7.00% |  |
Additional tax depending on dividends distributed at the rate of 25% | 13.00% |  |
Tax Adjustment For Inflation [Abstract] |  |  |
Percentage of tax adjustment | 100.00% |  |
Tax adjustment period | 36 months |  |
Percentage of tax adjustment, condition one | 33.00% |  |
Percentage of tax adjustment, condition two | 66.00% |  |
Bottom of Range [Member] |  |  |
Tax Revaluation [Abstract] |  |  |
Special tax, percentage | 8.00% |  |
Top of Range [Member] |  |  |
Tax Revaluation [Abstract] |  |  |
Special tax, percentage | 15.00% |  |
2018 [Member] |  |  |
Reduction in the applicable rate [Abstract] |  |  |
Income tax rate | 30.00% |  |
2019 [Member] |  |  |
Reduction in the applicable rate [Abstract] |  |  |
Income tax rate | 30.00% |  |
2020 and Onwards [Member] |  |  |
Reduction in the applicable rate [Abstract] |  |  |
Income tax rate | 25.00% |  |

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