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INCOME TAX AND DEFERRED TAX (Details) - Installment | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Reduction in the applicable rate [Abstract] |  |  |  |
Income tax rate | 30.00% | 30.00% | 30.00% | 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 Revaluation [Abstract] |  |  |  |
Number of consecutive monthly installments | 5 |  |  |
Bottom of Range [Member] |  |  |  |
Tax Revaluation [Abstract] |  |  |  |
Special tax, percentage | 8.00% |  |  |
Top of Range [Member] |  |  |  |
Tax Revaluation [Abstract] |  |  |  |
Special tax, percentage | 15.00% |  |  |
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% |  |  |
2021 and Onwards [Member] |  |  |  |
Reduction in the applicable rate [Abstract] |  |  |  |
Income tax rate | 25.00% |  |  |

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