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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2022
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |
Schedule of portfolio segments and allowances for credit losses | ​
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Loan Portfolio Segment |  | Loan Portfolio Class |  | Allowance for Credit Losses Methodology
Business lending |  | Commercial real estate multi family |  | Cumulative loss rate
Business lending |  | Commercial real estate non-owner occupied |  | Cumulative loss rate
Business lending |  | Commercial real estate owner occupied |  | Cumulative loss rate
Business lending |  | Commercial and industrial loans |  | Vintage loss rate
Business lending |  | Commercial and industrial lines of credit |  | Line loss
Business lending |  | Municipal |  | Cumulative loss rate
Business lending |  | Other business |  | Cumulative loss rate
Business lending |  | Paycheck Protection Program |  | Cumulative loss rate
Consumer mortgage |  | Consumer mortgage FICO AB |  | Cumulative loss rate
Consumer mortgage |  | Consumer mortgage FICO CDE |  | Cumulative loss rate
Consumer indirect |  | Indirect new auto |  | Vintage loss rate
Consumer indirect |  | Indirect used auto |  | Vintage loss rate
Consumer indirect |  | Indirect non-auto |  | Vintage loss rate
Consumer direct |  | Consumer check credit |  | Line loss
Consumer direct |  | Consumer direct |  | Vintage loss rate
Home equity |  | Home equity fixed rate |  | Vintage loss rate
Home equity |  | Home equity lines of credit |  | Line loss
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