FAIR VALUE OF FINANCIAL INSTRUMENTS (Valuation Technique) (Details) - Fair Value, Inputs, Level 3 [Member]	9 Months Ended	12 Months Ended
	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%