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INVESTMENT SECURITIES (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Apr. 01, 2022
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Investments, Debt and Equity Securities [Abstract] |  |  |
Available for sale Securities, Amortized Cost, 1 year or less | $ 15,664 |  |
Available for sale Securities, Fair Value, 1 year or less | 15,178 |  |
Available for sale Securities, Amortized Cost, Over 1 year through 5 years | 109,772 |  |
Available for sale Securities, Fair Value, Over 1 year through 5 years | 99,591 |  |
Available for sale Securities, Amortized Cost, Over 5 years through 10 years | 81,348 |  |
Available for sale Securities, Fair Value, Over 5 years through 10 years | 70,242 |  |
Available for sale Securities, Amortized Cost, Over 10 years | 2,000 |  |
Available for sale Securities, Fair Value, Over 10 years | 1,478 |  |
Available for sale Securities, Amortized Cost, without a Single Maturity Date | 293,128 |  |
Available for sale Securities, Fair Value, without a Single Maturity Date | 265,204 |  |
Securities Available for sale, Amortized Cost | 501,912 | $ 617,641 |
Investment securities available for sale, at estimated fair value | 451,693 | 553,554 | $ 39,700
Held to maturity Securities, Amortized Cost, 1 year or less | 0 |  |
Held to maturity Securities, Fair Value, 1 year or less | 0 |  |
Held to maturity Securities, Amortized Cost, Over 1 year through 5 years | 1,394 |  |
Held to maturity Securities, Fair Value, Over 1 year through 5 years | 1,299 |  |
Held to maturity Securities, Amortized Cost, Over 5 years through 10 years | 25,391 |  |
Held to maturity Securities, Fair Value, Over 5 years through 10 years | 23,807 |  |
Held to maturity Securities, Amortized Cost, Over 10 years | 35,348 |  |
Held to maturity Securities, Fair Value, Over 10 years | 31,608 |  |
Held to maturity Securities, Debt Maturities, without Single Maturity Date, Net Carrying Amount | 2,467 |  |
Held to maturity Securities, Debt Maturities, without Single Maturity Date, Fair Value | 2,343 |  |
Securities Held to maturity, Amortized Cost | 64,600 | 64,977 |
Investment securities held to maturity | $ 59,057 | $ 58,078 |

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