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Investment Securities (Tables) | 9 Months Ended
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Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of Amortized Cost and Estimated Fair Value of Securities Available-for-Sale and Held-to-Maturity | The amortized cost and estimated fair value of securities available-for-sale and held-to-maturity along with gross unrealized gains and losses are summarized as follows:
(dollars in thousands) |  |  |  |  |  |  |
September 30, 2025 | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities Available-for-Sale: |  |  |  |  |  |  |
U.S. treasury securities | $ | 766 |  |  | $ | — |  |  | $ | (3) |  |  | $ | 763 |
U.S. agency securities | 2,265 |  |  | — |  |  | (120) |  |  | 2,145 |
Asset backed securities | 15,033 |  |  | 18 |  |  | (206) |  |  | 14,845 |
State, county & municipal securities | 109,984 |  |  | 9 |  |  | (12,348) |  |  | 97,645 |
Corporate debt securities | 49,816 |  |  | 19 |  |  | (3,986) |  |  | 45,849 |
Mortgage-backed securities | 158,446 |  |  | 419 |  |  | (14,853) |  |  | 144,012 |
Total | $ | 336,310 |  |  | $ | 465 |  |  | $ | (31,516) |  |  | $ | 305,259 |
September 30, 2025 | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities Held-to-Maturity: |  |  |  |  |  |  |
U.S. treasury securities | $ | 65,126 |  |  | $ | — |  |  | $ | (1,244) |  |  | $ | 63,882 |
U.S. agency securities | 9,048 |  |  | — |  |  | (736) |  |  | 8,312 |
State, county & municipal securities | 137,491 |  |  | 44 |  |  | (13,257) |  |  | 124,278 |
Mortgage-backed securities | 177,470 |  |  | — |  |  | (20,324) |  |  | 157,146 |
Total | $ | 389,135 |  |  | $ | 44 |  |  | $ | (35,561) |  |  | $ | 353,618 |
December 31, 2024 | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities Available-for-Sale: |  |  |  |  |  |  |
U.S. treasury securities | $ | 3,173 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,173 |
U.S. agency securities | 3,001 |  |  | — |  |  | (246) |  |  | 2,755 |
Asset backed securities | 17,925 |  |  | 17 |  |  | (118) |  |  | 17,824 |
State, county & municipal securities | 110,952 |  |  | — |  |  | (15,315) |  |  | 95,637 |
Corporate debt securities | 53,324 |  |  | 1 |  |  | (5,543) |  |  | 47,782 |
Mortgage-backed securities | 221,005 |  |  | 207 |  |  | (22,334) |  |  | 198,878 |
Total | $ | 409,380 |  |  | $ | 225 |  |  | $ | (43,556) |  |  | $ | 366,049 |
December 31, 2024 | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Securities Held-to-Maturity: |  |  |  |  |  |  |
U.S. treasury securities | $ | 91,004 |  |  | $ | — |  |  | $ | (2,828) |  |  | $ | 88,176 |
U.S. agency securities | 16,151 |  |  | — |  |  | (1,263) |  |  | 14,888 |
State, county & municipal securities | 137,190 |  |  | — |  |  | (15,915) |  |  | 121,275 |
Mortgage-backed securities | 185,732 |  |  | — |  |  | (27,051) |  |  | 158,681 |
Total | $ | 430,077 |  |  | $ | — |  |  | $ | (47,057) |  |  | $ | 383,020 |
Schedule of Mortgage-Backed Securities | This is often the case with mortgage-backed securities, which are disclosed separately in the table below.
| Available-for-Sale |  | Held-to-Maturity
(dollars in thousands) | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Due in one year or less | $ | 8,916 |  |  | $ | 8,720 |  |  | $ | 11,852 |  |  | $ | 11,818 |
Due after one year through five years | 19,955 |  |  | 18,929 |  |  | 64,591 |  |  | 62,988 |
Due after five years through ten years | 91,156 |  |  | 81,239 |  |  | 72,713 |  |  | 66,861 |
Due after ten years | 57,837 |  |  | 52,359 |  |  | 62,509 |  |  | 54,805 |
| $ | 177,864 |  |  | $ | 161,247 |  |  | $ | 211,665 |  |  | $ | 196,472 |
Mortgage-backed securities | 158,446 |  |  | 144,012 |  |  | 177,470 |  |  | 157,146 |
| $ | 336,310 |  |  | $ | 305,259 |  |  | $ | 389,135 |  |  | $ | 353,618 |
Schedule Of Securities In A Continuous Loss Position | Information pertaining to available-for-sale securities with gross unrealized losses at September 30, 2025 and December 31, 2024 aggregated by investment category and length of time that individual securities have been in a continuous loss position is as follows:
| Less Than 12 Months |  | 12 Months or Greater |  | Total
(dollars in thousands) | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities | $ | 763 |  |  | $ | (3) |  |  | $ | — |  |  | $ | — |  |  | $ | 763 |  |  | $ | (3) |
U.S. agency securities | — |  |  | — |  |  | 2,145 |  |  | (120) |  |  | 2,145 |  |  | (120) |
Asset backed securities | 3,988 |  |  | (19) |  |  | 7,507 |  |  | (187) |  |  | 11,495 |  |  | (206) |
State, county & municipal securities | 41,235 |  |  | (5,060) |  |  | 55,612 |  |  | (7,288) |  |  | 96,847 |  |  | (12,348) |
Corporate debt securities | — |  |  | — |  |  | 39,829 |  |  | (3,986) |  |  | 39,829 |  |  | (3,986) |
Mortgage-backed securities | — |  |  | — |  |  | 127,803 |  |  | (14,853) |  |  | 127,803 |  |  | (14,853) |
| $ | 45,986 |  |  | $ | (5,082) |  |  | $ | 232,896 |  |  | $ | (26,434) |  |  | $ | 278,882 |  |  | $ | (31,516) |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |
U.S. agency securities | — |  |  | — |  |  | 2,755 |  |  | (246) |  |  | 2,755 |  |  | (246) |
Asset backed securities | 3,715 |  |  | (8) |  |  | 8,269 |  |  | (110) |  |  | 11,984 |  |  | (118) |
State, county & municipal securities | 2,829 |  |  | (294) |  |  | 92,808 |  |  | (15,021) |  |  | 95,637 |  |  | (15,315) |
Corporate debt securities | 4,434 |  |  | (720) |  |  | 42,847 |  |  | (4,823) |  |  | 47,281 |  |  | (5,543) |
Mortgage-backed securities | 21,278 |  |  | (430) |  |  | 160,343 |  |  | (21,904) |  |  | 181,621 |  |  | (22,334) |
| $ | 32,256 |  |  | $ | (1,452) |  |  | $ | 307,022 |  |  | $ | (42,104) |  |  | $ | 339,278 |  |  | $ | (43,556) |
Information pertaining to held-to-maturity securities with gross unrealized losses at September 30, 2025 and December 31, 2024 aggregated by investment category and length of time that individual securities have been in a continuous loss position is as follows:
| Less Than 12 Months |  | 12 Months or Greater |  | Total
(dollars in thousands) | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
September 30, 2025 |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities | $ | — |  |  | $ | — |  |  | $ | 63,882 |  |  | $ | (1,244) |  |  | $ | 63,882 |  |  | $ | (1,244) |
U.S. agency securities | — |  |  | — |  |  | 8,312 |  |  | (736) |  |  | 8,312 |  |  | (736) |
State, county & municipal securities | 41,408 |  |  | (5,133) |  |  | 77,889 |  |  | (8,124) |  |  | 119,297 |  |  | (13,257) |
Mortgage-backed securities | — |  |  | — |  |  | 157,146 |  |  | (20,324) |  |  | 157,146 |  |  | (20,324) |
| $ | 41,408 |  |  | $ | (5,133) |  |  | $ | 307,229 |  |  | $ | (30,428) |  |  | $ | 348,637 |  |  | $ | (35,561) |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities | $ | — |  |  | $ | — |  |  | $ | 88,176 |  |  | $ | (2,828) |  |  | $ | 88,176 |  |  | $ | (2,828) |
U.S. agency securities | — |  |  | — |  |  | 14,888 |  |  | (1,263) |  |  | 14,888 |  |  | (1,263) |
State, county & municipal securities | 18,751 |  |  | (374) |  |  | 102,524 |  |  | (15,541) |  |  | 121,275 |  |  | (15,915) |
Mortgage-backed securities | — |  |  | — |  |  | 158,681 |  |  | (27,051) |  |  | 158,681 |  |  | (27,051) |
| $ | 18,751 |  |  | $ | (374) |  |  | $ | 364,269 |  |  | $ | (46,683) |  |  | $ | 383,020 |  |  | $ | (47,057) |

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