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SUBORDINATED NOTES AND TRUST PREFERRED DEBT - Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2020 | Jun. 30, 2006 | Nov. 30, 2004 | Sep. 30, 2024 | Dec. 31, 2023 | Jul. 01, 2024
Debt Instrument [Line Items] |  |  |  |  |  |
Debt issuance costs |  |  |  | $ 353 | $ 407 |
Debt issuance cost amortization period |  |  |  | 10 years | 10 years |
Subordinated notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument basis spread |  |  |  | 0.26161% |  |
Debt instrument, interest rate, effective percentage |  |  |  | 3.16% |  |
Debt instrument fixed interest rate |  |  |  | 8.75% |  |
Subordinated notes | Codorus Valley |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument basis spread | 4.04% |  |  |  |  |
Debt instrument face amount | $ 31,000 |  |  |  |  |
Debt instrument redemption integral multiples amount | $ 10,000 |  |  |  |  |
Debt instrument redemption percentage prior to maturity date | 100.00% |  |  |  |  |
Fixed rate of interest | 4.50% |  |  |  |  |
Subordinated notes | CVB Statutory Trust No. II |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument basis spread |  | 0.26161% |  |  |  |
Debt instrument, interest rate, effective percentage |  | 1.54% |  |  |  |
Pooled trust preferred debt issuance |  | $ 7,200 |  |  |  |
Subordinated notes | Codorus Valley |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Fair value of the debt |  |  |  |  |  | $ 28,600
Debt instrument, unamortized discount |  |  |  |  |  | 2,400
Subordinated notes | Codorus Valley | CVB Statutory Trust No. II |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Pooled trust preferred debt issuance |  |  | $ 3,100 |  |  |
Subordinated notes | Codorus Valley | CVB Statutory Trust No. I |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument basis spread |  |  | 0.26161% |  |  |
Debt instrument, interest rate, effective percentage |  |  | 2.02% |  |  |
Subordinated notes | Notes Payable, Other Payables |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unsecured subordinated notes payable outstanding |  |  |  | $ 63,100 | $ 32,100 |
Junior Subordinated Debt | Codorus Valley |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument face amount |  |  |  |  |  | 10,300
Fair value of the debt |  |  |  |  |  | 7,600
Debt instrument, unamortized discount |  |  |  |  |  | $ 2,700

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