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OTHER COMPREHENSIVE INCOME (LOSS) - Changes in the Accumulated Balances (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Changes in the accumulated balances for each component of other comprehensive income |  |  |  |  |
Balance at beginning of period | $ 176,045 | $ 165,558 | $ 173,334 | $ 167,088 | $ 167,088
Current year-to-date other comprehensive income | 3,552 | (2,862) | 3,483 | (4,083) |
Balance at end of period | 180,149 | 165,402 | 180,149 | 165,402 | 173,334
Unrealized Gains (Losses) on AFS Securities |  |  |  |  |
Changes in the accumulated balances for each component of other comprehensive income |  |  |  |  |
Balance at beginning of period |  |  | (24,001) | (24,353) | (24,353)
Current year-to-date other comprehensive income |  |  | 4,551 |  | 352
Balance at end of period | (19,450) |  | (19,450) |  | (24,001)
Other Accumulated Comprehensive Income (Loss), net of tax |  |  |  |  |
Changes in the accumulated balances for each component of other comprehensive income |  |  |  |  |
Balance at beginning of period | (17,397) | (18,877) | (17,328) | (17,656) | (17,656)
Current year-to-date other comprehensive income |  |  | 3,483 |  | 328
Balance at end of period | $ (13,845) | $ (21,739) | $ (13,845) | $ (21,739) | $ (17,328)

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