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Derivatives and Hedging Activities - Non-designated Hedges (Details) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) contract loan | Dec. 31, 2022 USD ($) loan contract | Dec. 31, 2021 USD ($) | Feb. 28, 2023 USD ($)
Nondesignated Hedges |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Gains (losses) on fair value hedges recognized in earnings |  | $ (337,000) | $ 321,000 | $ 312,000 |
Nondesignated Hedges | Commercial customers |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Total notional amount of the swaps |  | $ 82,200,000 | $ 107,000,000.0 |  |
Interest rate swaps | Nondesignated Hedges |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Number of participation loans purchased | loan |  | 1 | 1 |  |
Participating mortgage loans, mortgage obligations amount |  | $ 8,600,000 | $ 8,800,000 |  |
Interest rate swaps | Nondesignated Hedges | Third parties |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Number of interest rate derivatives held | contract |  | 6 | 6 |  |
Interest rate swaps | Nondesignated Hedges | Commercial customers |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Number of interest rate derivatives held | contract |  | 6 | 6 |  |
Interest rate swaps | Fair Value Hedges |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Total notional amount of the swaps |  |  |  |  | $ 95,000,000
Fixed rate of interest |  |  |  |  | 4.65%
Interest rate swaps | Fair Value Hedges | Subsequent event |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Net settled payment | $ 26,500 |  |  |  |
Brokered deposit | $ 163,000 |  |  |  |
Interest rate cap | Nondesignated Hedges | Third parties |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Number of interest rate derivatives held | contract |  |  | 1 |  |
Interest rate cap | Nondesignated Hedges | Commercial customers |  |  |  |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |  |  |  |
Number of interest rate derivatives held | contract |  |  | 1 |  |

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