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Investment Securities (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Amortized cost | $ 443,029,000 | $ 507,186,000
Gross unrealized gains | 201 | 536
Gross unrealized losses | 51,306,000 | 62,328,000
Estimated fair value | 391,924,000 | 445,394,000
GSE - Mortgage-backed securities |  |
Amortized cost | 257,705,000 | 263,712,000
Gross unrealized gains | 185,000 | 445,000
Gross unrealized losses | 22,988,000 | 23,657,000
Estimated fair value | 234,902,000 | 240,500,000
U.S. Government sponsored enterprises |  |
Amortized cost | 11,111,000 | 12,245,000
Gross unrealized gains | 0 | 0
Gross unrealized losses | 596,000 | 706,000
Estimated fair value | 10,515,000 | 11,539,000
State and political subdivisions |  |
Amortized cost | 129,922,000 | 184,768,000
Gross unrealized gains | 0 | 91,000
Gross unrealized losses | 24,829,000 | 34,656,000
Estimated fair value | 105,093,000 | 150,203,000
U.S Treasuries [Member] |  |
Amortized cost | 10,974,000 | 10,951,000
Gross unrealized gains | 0 | 0
Gross unrealized losses | 830,000 | 1,137,000
Estimated fair value | 10,144,000 | 9,814,000
Private label mortgage backed securities |  |
Amortized cost | 33,317,000 | 35,510,000
Gross unrealized gains | 16 | 0
Gross unrealized losses | 2,063,000 | 2,172,000
Estimated fair value | $ 31,270,000 | $ 33,338,000

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