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SUBORDINATED NOTES - Narrative (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 01, 2024 | Jun. 30, 2006 | Nov. 30, 2004 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt issuance costs |  |  |  | $ 0 |  | $ 0 |  | $ (353)
Debt issuance cost amortization period |  |  |  |  |  | 10 years | 10 years |
Amortization of debt issuance costs |  |  |  |  | $ (23) | $ (335) | $ (58) |
Subordinated notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument interest rate |  |  |  | 7.72% |  | 7.72% |  |
Subordinated notes | Codorus Valley |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Fixed rate of interest | 4.50% |  |  |  |  |  |  |
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% |  |  |  |  |  |  |
Subordinated notes | CVB Statutory Trust No. II |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument basis spread |  | 0.26161% |  |  |  |  |  |
Pooled trust preferred debt issuance |  | $ 7,200 |  |  |  |  |  |
Debt instrument, interest rate, effective percentage |  | 1.54% |  |  |  |  |  |
Subordinated notes | Codorus Valley |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Fair value of the debt | $ 28,600 |  |  |  |  |  |  |
Unamortized discount | 2,400 |  |  |  |  |  |  |
Subordinated notes | Codorus Valley | CVB Statutory Trust No. I |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument basis spread |  |  | 0.26161% |  |  |  |  |
Pooled trust preferred debt issuance |  |  | $ 3,100 |  |  |  |  |
Debt instrument, interest rate, effective percentage |  |  | 2.02% |  |  |  |  |
Trust preferred debt, cost, percentage |  |  |  |  |  | 6.33% | 7.42% |
Subordinated notes | Notes Payable, Other Payables |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Unsecured subordinated notes payable outstanding |  |  |  | $ 31,000 |  | $ 31,000 |  | $ 63,100
Subordinated Notes, 2028 |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt redeemed face amount |  |  |  | $ 32,500 |  | $ 32,500 |  |
Fixed rate of interest |  |  |  | 6.00% |  | 6.00% |  |
Amortization of debt issuance costs |  |  |  | $ (298) |  |  |  |
Subordinated Notes, 2028 | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument basis spread |  |  |  |  |  | 0.26161% |  |
Subordinated Notes, 2028 | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument basis spread |  |  |  |  |  | 3.16% |  |
Junior Subordinated Debt | Codorus Valley |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument face amount | 10,300 |  |  |  |  |  |  |
Fair value of the debt | 7,600 |  |  |  |  |  |  |
Unamortized discount | $ 2,700 |  |  |  |  |  |  |

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