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MORTGAGE BANKING ACTIVITIES (key unobservable inputs used in determining the fair value) (Details) - $ / LoanContracts
3 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Maximum [Member]    
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]    
Discount Rates 15.00% 15.00%
Annual prepayment speeds 22.68% 23.64%
Cost of Servicing (per loan) 110 110
Minimum [Member]    
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]    
Discount Rates 11.00% 11.00%
Annual prepayment speeds 13.09% 13.08%
Cost of Servicing (per loan) 90 90