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Investment Securities (Tables) | 12 Months Ended
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Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available For Sale, Held-to-Maturity, and Restricted Equity Securities | The following table summarizes the amortized cost and estimated fair value of investment securities at December 31, 2024:
| Amortized | Unrealized | Unrealized | Fair Value
As of December 31, 2024 | Cost | Gains | Losses | (Estimated)
Securities available for sale |  |  |  |
U.S. Treasury & Agency securities | $ | 26,042,000 |  | $ | — |  | $ | (6,246,000) |  | $ | 19,796,000 |
Mortgage-backed securities | 260,267,000 | 141,000 |  | (41,026,000) |  | 219,382,000
State and political subdivisions | 40,148,000 |  | — |  | (6,896,000) |  | 33,252,000 |
Asset-backed securities | 2,236,000 |  | 14,000 |  | — |  | 2,250,000 |
| $ | 328,693,000 |  | $ | 155,000 |  | $ | (54,168,000) |  | $ | 274,680,000 |
Securities to be held to maturity |  |  |  |
U.S. Treasury & Agency securities | $ | 38,100,000 |  | $ | — |  | $ | (9,938,000) |  | $ | 28,162,000 |
Mortgage-backed securities | 52,370,000 |  | 15,000 |  | (11,360,000) |  | 41,025,000 |
State and political subdivisions | 252,180,000 |  | 83,000 |  | (31,739,000) |  | 220,524,000 |
Corporate securities | 27,250,000 |  | — |  | (1,968,000) |  | 25,282,000 |
| $ | 369,900,000 |  | $ | 98,000 |  | $ | (55,005,000) |  | $ | 314,993,000 |
Less allowance for credit losses | (196,000) |  | — |  | — |  | — |
Net securities to be held to maturity | $ | 369,704,000 |  | $ | 98,000 |  | $ | (55,005,000) |  | $ | 314,993,000 |
Restricted equity securities |  |  |  |
Federal Home Loan Bank Stock | $ | 6,166,000 |  | $ | — |  | $ | — |  | $ | 6,166,000 |
Federal Reserve Bank Stock | 1,037,000 |  | — |  | — |  | 1,037,000 |
| $ | 7,203,000 |  | $ | — |  | $ | — |  | $ | 7,203,000 |
The following table summarizes the amortized cost and estimated fair value of investment securities at December 31, 2023:
| Amortized | Unrealized | Unrealized | Fair Value
As of December 31, 2023 | Cost | Gains | Losses | (Estimated)
Securities available for sale |  |  |  |
U.S. Treasury & Agency securities | $ | 26,033,000 |  | $ | — |  | $ | (6,203,000) |  | $ | 19,830,000 |
Mortgage-backed securities | 262,823,000 | 265,000 | (38,491,000) |  | 224,597,000
State and political subdivisions | 40,306,000 |  | 41,000 |  | (5,702,000) |  | 34,645,000 |
Asset-backed securities | 2,986,000 |  | 4,000 |  | (9,000) |  | 2,981,000 |
| $ | 332,148,000 |  | $ | 310,000 |  | $ | (50,405,000) |  | $ | 282,053,000 |
Securities to be held to maturity |  |  |  |
U.S. Treasury & Agency securities | $ | 40,100,000 |  | $ | — |  | $ | (9,601,000) |  | $ | 30,499,000 |
Mortgage-backed securities | 56,401,000 |  | 70,000 |  | (10,398,000) |  | 46,073,000 |
State and political subdivisions | 254,418,000 |  | 313,000 |  | (24,213,000) |  | 230,518,000 |
Corporate securities | 34,750,000 |  | — |  | (3,270,000) |  | 31,480,000 |
| $ | 385,669,000 |  | $ | 383,000 |  | $ | (47,482,000) |  | $ | 338,570,000 |
Less allowance for credit losses | (434,000) |  | — |  | — |  | — |
Net securities to be held to maturity | $ | 385,235,000 |  | $ | 383,000 |  | $ | (47,482,000) |  | $ | 338,570,000 |
Restricted equity securities |  |  |  |
Federal Home Loan Bank Stock | $ | 2,348,000 |  | $ | — |  | $ | — |  | $ | 2,348,000 |
Federal Reserve Bank Stock | 1,037,000 |  | — |  | — |  | 1,037,000 |
| $ | 3,385,000 |  | $ | — |  | $ | — |  | $ | 3,385,000 |
Schedule of Contractual Maturities of Investment Securities | The following table summarizes the contractual maturities of investment securities at December 31, 2024:
| Securities available for sale |  | Securities to be held to maturity
| Amortized Cost |  | Fair Value (Estimated) |  | Amortized Cost |  | Fair Value (Estimated)
Due in 1 year or less | $ | 2,997,000 |  |  | $ | 2,967,000 |  |  | $ | 2,683,000 |  |  | $ | 2,694,000 |
Due in 1 to 5 years | 294,000 |  |  | 293,000 |  |  | 20,488,000 |  |  | 19,335,000 |
Due in 5 to 10 years | 29,768,000 |  |  | 25,700,000 |  |  | 99,505,000 |  |  | 92,362,000 |
Due after 10 years | 295,634,000 |  |  | 245,720,000 |  |  | 247,224,000 |  |  | 200,602,000 |
| $ | 328,693,000 |  |  | $ | 274,680,000 |  |  | $ | 369,900,000 |  |  | $ | 314,993,000 |
The following table summarizes the contractual maturities of investment securities at December 31, 2023:
| Securities available for sale |  | Securities to be held to maturity
| Amortized Cost |  | Fair Value (Estimated) |  | Amortized Cost |  | Fair Value (Estimated)
Due in 1 year or less | $ | — |  |  | $ | — |  |  | $ | 1,674,000 |  |  | $ | 1,672,000 |
Due in 1 to 5 years | 3,489,000 |  |  | 3,373,000 |  |  | 16,387,000 |  |  | 15,814,000 |
Due in 5 to 10 years | 28,551,000 |  |  | 25,089,000 |  |  | 99,942,000 |  |  | 93,894,000 |
Due after 10 years | 300,108,000 |  |  | 253,591,000 |  |  | 267,666,000 |  |  | 227,190,000 |
| $ | 332,148,000 |  |  | $ | 282,053,000 |  |  | $ | 385,669,000 |  |  | $ | 338,570,000 |
Schedule of Securities Gains and Losses | The following table shows securities gains and losses for 2024, 2023 and 2022:
| 2024 |  | 2023 |  | 2022
Proceeds from sales of securities | $ | — |  |  | $ | — |  |  | $ | 1,301,000 |
Gross realized gains | — |  |  | — |  |  | 8,000 |
Gross realized losses | — |  |  | — |  |  | (1,000) |
Net gain | $ | — |  |  | $ | — |  |  | $ | 7,000 |
Related income taxes | $ | — |  |  | $ | — |  |  | $ | 1,000 |
Schedule of Temporary Impairment Losses | The following table summarizes AFS debt securities in an unrealized loss position for which an ACL has not been recorded at December 31, 2024, aggregated by major security type and length of time in a continuous unrealized loss position:
| Less than 12 months | 12 months or more | Total
| Fair | Unrealized | Fair | Unrealized | Fair | Unrealized
As of December 31, 2024 | Value | Losses | Value | Losses | Value | Losses
U.S. Treasury & Agency securities | $ | — |  | $ | — |  | $ | 19,796,000 |  | $ | (6,246,000) |  | $ | 19,796,000 |  | $ | (6,246,000) |
Mortgage-backed securities | 18,544,000 |  | (222,000) |  | 186,155,000 |  | (40,804,000) |  | 204,699,000 |  | (41,026,000) |
State and political subdivisions | 4,968,000 |  | (70,000) |  | 28,104,000 |  | (6,826,000) |  | 33,072,000 |  | (6,896,000) |
| $ | 23,512,000 |  | $ | (292,000) |  | $ | 234,055,000 |  | $ | (53,876,000) |  | $ | 257,567,000 |  | $ | (54,168,000) |
The following table summarizes AFS debt securities in an unrealized loss position for which an ACL has not been recorded at December 31, 2023, aggregated by major security type and length of time in a continuous unrealized loss position:
| Less than 12 months | 12 months or more | Total
| Fair | Unrealized | Fair | Unrealized | Fair | Unrealized
As of December 31, 2023 | Value | Losses | Value | Losses | Value | Losses
U.S. Treasury & Agency securities | $ | — |  | $ | — |  | $ | 19,830,000 |  | $ | (6,203,000) |  | $ | 19,830,000 |  | $ | (6,203,000) |
Mortgage-backed securities | 1,712,000 |  | (14,000) |  | 208,717,000 |  | (38,477,000) |  | 210,429,000 |  | (38,491,000) |
State and political subdivisions | 2,082,000 |  | (49,000) |  | 27,700,000 |  | (5,653,000) |  | 29,782,000 |  | (5,702,000) |
Asset-backed securities | — |  | — |  | 1,464,000 |  | (9,000) |  | 1,464,000 |  | (9,000) |
| $ | 3,794,000 |  | $ | (63,000) |  | $ | 257,711,000 |  | $ | (50,342,000) |  | $ | 261,505,000 |  | $ | (50,405,000) |
Schedule of Activity in the ACL for Held-to-maturity Debt Securities | The following table presents the activity in the ACL for HTM debt securities by major security type for the years ended December 31, 2024 and 2023:
For the years ended December 31, | 2024 | 2023
| State and Political Subdivisions | Corporate Securities | Total | State and Political Subdivisions | Corporate Securities | Total
Allowance for credit losses: |  |  |  |  |  |
Beginning balance | $ | 212,000 |  | $ | 222,000 |  | $ | 434,000 |  | $ | — |  | $ | — |  | $ | — |
Impact of adopting ASC 326 | — |  | — |  | — |  | 209,000 |  | 229,000 |  | 438,000 |
Credit loss (reduction) expense | (132,000) |  | (106,000) |  | (238,000) |  | 3,000 |  | (7,000) |  | (4,000) |
Securities charged-off | — |  | — |  | — |  | — |  | — |  | — |
Recoveries | — |  | — |  | — |  | — |  | — |  | — |
Total ending allowance balance | $ | 80,000 |  | $ | 116,000 |  | $ | 196,000 |  | $ | 212,000 |  | $ | 222,000 |  | $ | 434,000 |

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