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INVESTMENT SECURITIES (Schedule of Amortized Cost and Approximate Fair Value of Securities Available for Sale) (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Securities Available for Sale: |  |
Amortized Cost | $ 652,853 | $ 645,835
Gross Unrealized Gains | 95 | 80
Gross Unrealized Losses | (102,078) | (95,298)
Fair Value | 550,870 | 550,617
Securities Held to Maturity: |  |
Amortized Cost | 106,498 | 107,755
Gross Unrealized Losses | (14,155) | (13,340)
Fair Value | 92,343 | 94,415
U.S. Government-Sponsored Agencies [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 244,799 | 244,794
Gross Unrealized Losses | (49,782) | (47,103)
Fair Value | 195,017 | 197,691
Securities Held to Maturity: |  |
Amortized Cost | 40,000 | 40,000
Gross Unrealized Losses | (3,687) | (3,369)
Fair Value | 36,313 | 36,631
Mortgage-Backed Securities-Residential [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 371,821 | 363,893
Gross Unrealized Gains | 95 | 80
Gross Unrealized Losses | (46,780) | (43,177)
Fair Value | 325,136 | 320,796
Securities Held to Maturity: |  |
Amortized Cost | 66,498 | 67,755
Gross Unrealized Losses | (10,468) | (9,971)
Fair Value | 56,030 | 57,784
SBA Pool Securities [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 26,233 | 27,148
Gross Unrealized Gains |  | 0
Gross Unrealized Losses | (3,939) | (3,744)
Fair Value | 22,294 | 23,404
Corporate Bond [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 10,000 | 10,000
Gross Unrealized Losses | (1,577) | (1,274)
Fair Value | $ 8,423 | $ 8,726

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