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INVESTMENT SECURITIES (Schedule of Amortized Cost and Approximate Fair Value of Securities Available for Sale) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Securities Available for Sale: |  |
Amortized Cost | $ 645,835 | $ 661,045
Gross Unrealized Gains | 80 | 28
Gross Unrealized Losses | (95,298) | (106,425)
Fair Value | 550,617 | 554,648
Securities Held to Maturity: |  |
Amortized Cost | 107,755 | 102,291
Gross Unrealized Losses | (13,340) | (15,104)
Fair Value | 94,415 | 87,187
U.S. Government-Sponsored Agencies [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 244,794 | 40,000
Gross Unrealized Losses | (47,103) | (4,563)
Fair Value | 197,691 | 35,437
Securities Held to Maturity: |  |
Amortized Cost | 40,000 | 244,774
Gross Unrealized Losses | (3,369) | (54,232)
Fair Value | 36,631 | 190,542
Mortgage-Backed Securities-Residential [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 363,893 | 62,291
Gross Unrealized Gains | 80 |
Gross Unrealized Losses | (43,177) | (10,541)
Fair Value | 320,796 | 51,750
Securities Held to Maturity: |  |
Amortized Cost | 67,755 | 372,471
Gross Unrealized Gains |  | 27
Gross Unrealized Losses | (9,971) | (46,760)
Fair Value | 57,784 | 325,738
SBA Pool Securities [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 27,148 | 31,934
Gross Unrealized Gains |  | 1
Gross Unrealized Losses | (3,744) | (4,508)
Fair Value | 23,404 | 27,427
State and Political Subdivisions [Member] |  |
Securities Available for Sale: |  |
Amortized Cost |  | 1,866
Gross Unrealized Losses |  | (17)
Fair Value |  | 1,849
Corporate Bond [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 10,000 | 10,000
Gross Unrealized Losses | (1,274) | (908)
Fair Value | $ 8,726 | $ 9,092

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