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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 3 Months Ended
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Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Financing Receivable Portfolio Segments |
Loan Segment |  | Historical Lifetime Loss Method |  | Historical Lookback Period |  | Economic Forecast Length |  | Reversion Method
Construction |  | Probability of Default/Loss Given Default ("PD/LGD") |  | 2008-Present |  | One Year |  | One Year (straight-line basis)
Commercial real estate |  | PD/LGD |  | 2008-Present |  |
Multi-family mortgage |  | PD/LGD |  | 2008-Present |  |
Commercial, financial and agricultural |  | PD/LGD |  | 2008-Present |  |
Home equity lines of credit |  | Loss-Rate Migration |  | 2008-Present |  |
Residential mortgage |  | Loss-Rate Migration |  | 2008-Present |  |
Consumer - other revolving |  | Loss-Rate Migration |  | 2008-Present |  |
Consumer - non-revolving |  | Loss-Rate Migration |  | 2008-Present |  |
Purchased Mainland portfolios (Dealer, Other consumer) |  | Weighted-Average Remaining Maturity ("WARM") |  | 2008-Present |  |

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