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FAIR VALUE OF FINANCIAL INSTRUMENTS (Valuation Technique) (Details) - Fair Value, Inputs, Level 3 [Member] | 9 Months Ended | 12 Months Ended
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Sep. 30, 2021 | Dec. 31, 2020
Corporate Bonds (TPS securities) [Member] | Weighted Average [Member] | Discounted cash flows [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Fair Value Input, Discount Rate | 3.63% | 4.24%
Impaired Loans [Member] | Minimum [Member] | discount to appraised value [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
fair value inputs, discount to appraised value | 8.50% | 0.00%
Impaired Loans [Member] | Maximum [Member] | discount to appraised value [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
fair value inputs, discount to appraised value | 20.00% | 20.00%
Real Estate Owned [Member] | Weighted Average [Member] | discount to appraised value [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
fair value inputs, discount to appraised value | 60.91% | 51.86%
Interest Rate Lock Commitments [Member] | Weighted Average [Member] | Valuation, Pricing Model [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Fair Value Input, Pull-Through Rate | 86.43% |
Servicing Contracts [Member] | Weighted Average [Member] | Discounted cash flows [Member] |  |
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] |  |
Fair Value Input, Pull-Through Rate |  | 86.35%

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