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OTHER COMPREHENSIVE INCOME (LOSS) - Changes in the Accumulated Balances (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Changes in the accumulated balances for each component of other comprehensive income |  |  |
Balance at beginning of period | $ 173,334 | $ 167,088 | $ 167,088
Current year-to-date other comprehensive income (loss) | (702) | 1,065 |
Balance at end of period | 172,821 | 164,561 | 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 (loss) | (891) |  | 352
Balance at end of period | (24,892) |  | (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 | (17,328) | (17,656) | (17,656)
Current year-to-date other comprehensive income (loss) | (702) |  | 328
Balance at end of period | $ (18,030) | $ (16,591) | $ (17,328)

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