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INCOME TAX AND DEFERRED TAX (Details) - Installment
12 Months Ended
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%