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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, 2022 | Dec. 31, 2021
--- | --- | ---
Securities Available for Sale: |  |
Amortized Cost | $ 661,045 | $ 809,687
Gross Unrealized Gains | 28 | 3,927
Gross Unrealized Losses | (106,425) | (16,861)
Fair Value | 554,648 | 796,753
Securities Held to Maturity: |  |
Amortized Cost | 102,291 | 108,680
Gross Unrealized Gains |  | 74
Gross Unrealized Losses | (15,104) | (294)
Fair Value | 87,187 | 108,460
U.S. Government-Sponsored Agencies [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 244,774 | 280,045
Gross Unrealized Losses | (54,232) | (7,824)
Fair Value | 190,542 | 272,221
Securities Held to Maturity: |  |
Amortized Cost | 40,000 | 40,000
Gross Unrealized Gains |  | 7
Gross Unrealized Losses | (4,563) | (25)
Fair Value | 35,437 | 39,982
Mortgage-Backed Securities-Residential [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 372,471 | 481,062
Gross Unrealized Gains | 27 | 3,849
Gross Unrealized Losses | (46,760) | (7,937)
Fair Value | 325,738 | 476,974
Securities Held to Maturity: |  |
Amortized Cost | 62,291 | 68,680
Gross Unrealized Gains |  | 67
Gross Unrealized Losses | (10,541) | (269)
Fair Value | 51,750 | 68,478
SBA Pool Securities [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 31,934 | 40,649
Gross Unrealized Gains | 1 | 12
Gross Unrealized Losses | (4,508) | (1,100)
Fair Value | 27,427 | 39,561
State and Political Subdivisions [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 1,866 | 5,431
Gross Unrealized Gains |  | 45
Gross Unrealized Losses | (17) |
Fair Value | 1,849 | 5,476
Corporate Bond [Member] |  |
Securities Available for Sale: |  |
Amortized Cost | 10,000 | 2,500
Gross Unrealized Gains |  | 21
Gross Unrealized Losses | (908) |
Fair Value | $ 9,092 | $ 2,521

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