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ALLOWANCE FOR CREDIT LOSSES - LOANS - Additional information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Provision (Credit) |  |  |  |  |  |  |  |  | $ 6,563,000 | $ 50,000 | $ 1,100,000
Provision for credit losses | $ 6,018,000 | $ 189,000 | $ 43,000 | $ 1,179,000 | $ 275,000 | $ 500,000 | $ (325,000) | $ (400,000) | 7,429,000 | 50,000 | 1,100,000
Net loan charge-offs |  |  |  |  |  |  |  |  | $ 3,500,000 | $ 1,700,000 |
Percentage of charge-offs |  |  |  |  |  |  |  |  | 0.35% | 0.17% |
Percentage Of Allowance For Total Loans | 1.45% |  |  |  | 1.08% |  |  |  | 1.45% | 1.08% |
Evaluated for impairment | $ 150,000 |  |  |  |  |  |  |  | $ 150,000 |  |
Percentage of coverage on non-performing assets | 121.00% |  |  |  | 207.00% |  |  |  | 121.00% | 207.00% |
Percentage of general reserve | 49.00% |  |  |  |  |  |  |  |  |  |
Percentage of quantitative reserve | 51.00% |  |  |  |  |  |  |  |  |  |
Non-performing assets | $ 12,167,000 |  |  |  |  |  |  |  | $ 12,167,000 |  |
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  | 3,641,000 | $ 1,849,000 | 294,000
Residential Real Estate |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Other assets | 15,000 |  |  |  | $ 38,000 |  |  |  | 15,000 | 38,000 |
Residential Mortgages |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Mortgage loans in process of foreclosure, amount | 332,000 |  |  |  |  |  |  |  | 332,000 |  |
Non-performing |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total non-performing assets | 12,393,000 |  |  |  | 5,200,000 |  |  |  | 12,393,000 | 5,200,000 |
Other commercial real estate (non-owner occupied) |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-performing assets | 8,780,000 |  |  |  |  |  |  |  | 8,780,000 |  |
Current period gross charge-offs, Total | 804,000 |  |  |  |  |  |  |  |  |  |
Other commercial real estate (non-owner occupied) | Non-performing |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total non-performing assets | 8,780,000 |  |  |  |  |  |  |  | 8,780,000 |  |
Commercial real estate (non-owner occupied) |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-performing assets |  |  |  |  | 1,586,000 |  |  |  |  | 1,586,000 |
Commercial real estate (non-owner occupied) | COVID 19 |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |  |  | 916,000 | 968,000
Consumer |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Non-performing assets |  |  |  |  | 9,000 |  |  |  |  | 9,000 |
Consumer and Residential Mortgage Loans |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Minimum aggregate balances for commercial loan relationship under structure loan rating process. | 250,000 |  |  |  |  |  |  |  | 250,000 |  |
Other commercial and industrial |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Provision (Credit) |  |  |  |  |  |  |  |  | 599,000 |  |
Non-performing assets | 1,694,000 |  |  |  | $ 1,989,000 |  |  |  | 1,694,000 | 1,989,000 |
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  | 480,000 |  |
Other commercial and industrial | Non-performing |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total non-performing assets | 1,905,000 |  |  |  |  |  |  |  | 1,905,000 |  |
Pass |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Minimum individual loan balance requiring quarterly review | 2,000,000 |  |  |  |  |  |  |  | 2,000,000 |  |
Special Mention |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Minimum individual loan balance requiring quarterly review | 250,000 |  |  |  |  |  |  |  | 250,000 |  |
Substandard |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Minimum individual loan balance requiring quarterly review | 250,000 |  |  |  |  |  |  |  | 250,000 |  |
Doubtful |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Minimum individual loan balance requiring quarterly review | 100,000 |  |  |  |  |  |  |  | 100,000 |  |
Commercial |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  | 3,312,000 |  |
Commercial | COVID 19 |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses |  |  |  |  |  |  |  |  |  | 325,000 | (344,000)
Commercial | Commercial |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Provision (Credit) |  |  |  |  |  |  |  |  |  | (325,000) | (344,000)
Minimum aggregate balances for commercial loan relationship under structure loan rating process | 1,000,000 |  |  |  |  |  |  |  | 1,000,000 |  |
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  |  | 97,000 | 146,000
Commercial | Commercial real estate (non-owner occupied) - retail |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Provision (Credit) |  |  |  |  |  |  |  |  | 4,084,000 |  |
Net loan charge-offs |  |  |  |  |  |  |  |  | 2,000,000.0 |  |
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  | 2,028,000 |  |
Commercial | Other commercial real estate (non-owner occupied) |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Provision (Credit) |  |  |  |  |  |  |  |  | 1,022,000 |  |
Net loan charge-offs |  |  |  |  |  |  |  |  | 804,000 |  |
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  | $ 804,000 |  |
Commercial | Commercial real estate (non-owner occupied) |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Provision (Credit) |  |  |  |  |  |  |  |  |  | 916,000 | 968,000
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  |  | 1,390,000 |
Commercial | Commercial |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Minimum percent of portfolio to be reviewed |  |  |  |  |  |  |  |  | 25.00% |  |
Minimum aggregate balances for commercial loan relationship under structure loan rating process. | 1,000,000 |  |  |  |  |  |  |  | $ 1,000,000 |  |
Commercial | Other commercial and industrial |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current period gross charge-offs, Total | 405,000 |  |  |  |  |  |  |  | 480,000 |  |
Consumer. |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  | 329,000 |  |
Consumer. | Consumer |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Provision (Credit) |  |  |  |  |  |  |  |  | 499,000 | 239,000 | 71,000
Non-performing assets | 788,000 |  |  |  |  |  |  |  | 788,000 |  |
Current period gross charge-offs, Total |  |  |  |  |  |  |  |  | 275,000 | $ 334,000 | $ 131,000
Consumer. | Consumer | Non-performing |  |  |  |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total non-performing assets | $ 788,000 |  |  |  |  |  |  |  | $ 788,000 |  |

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