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Investment Securities (Tables) | 9 Months Ended
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Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract] |
Schedule of Investment Securities Available-for-Sale and Held-to-Maturity | Details of investment securities available-for-sale and held-to-maturity as of September 30, 2024 and December 31, 2023 were as follows:
|  | Available-for-Sale |
|  | September 30, 2024 |
|  |  |  |  | Gross |  |  | Gross |  |  | Estimated |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
|  | (Dollars in Thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 61,314 |  |  | $ | 1,416 |  |  | $ | (1,971 | ) |  | $ | 60,759 |
Commercial |  |  | 12,893 |  |  |  | 107 |  |  |  | (179 | ) |  |  | 12,821 |
Obligations of U.S. government-sponsored agencies |  |  | 11,439 |  |  |  | 298 |  |  |  | (463 | ) |  |  | 11,274 |
Obligations of states and political subdivisions |  |  | 1,588 |  |  |  | — |  |  |  | (33 | ) |  |  | 1,555 |
Corporate notes |  |  | 17,755 |  |  |  | 5 |  |  |  | (2,243 | ) |  |  | 15,517 |
U.S. Treasury securities |  |  | 44,016 |  |  |  | — |  |  |  | (1,667 | ) |  |  | 42,349 |
Total |  | $ | 149,005 |  |  | $ | 1,826 |  |  | $ | (6,556 | ) |  | $ | 144,275 |
|  | Held-to-Maturity |
|  | September 30, 2024 |
|  |  |  |  | Gross |  |  | Gross |  |  | Estimated |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
|  | (Dollars in Thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | 313 |  |  | $ | — |  |  | $ | (9 | ) |  | $ | 304 |
Obligations of U.S. government-sponsored agencies |  |  | 414 |  |  |  | — |  |  |  | (21 | ) |  | $ | 393 |
Obligations of states and political subdivisions |  |  | 42 |  |  |  | — |  |  |  | (3 | ) |  | $ | 39 |
Total |  | $ | 769 |  |  | $ | — |  |  | $ | (33 | ) |  | $ | 736 |
|  | Available-for-Sale |
|  | December 31, 2023 |
|  |  |  |  | Gross |  |  | Gross |  |  | Estimated |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
|  | (Dollars in Thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 47,221 |  |  | $ | 580 |  |  | $ | (3,073 | ) |  | $ | 44,728 |
Commercial |  |  | 9,446 |  |  |  | — |  |  |  | (406 | ) |  |  | 9,040 |
Obligations of U.S. government-sponsored agencies |  |  | 11,849 |  |  |  | 158 |  |  |  | (727 | ) |  |  | 11,280 |
Obligations of states and political subdivisions |  |  | 1,621 |  |  |  | — |  |  |  | (63 | ) |  |  | 1,558 |
Corporate notes |  |  | 17,757 |  |  |  | — |  |  |  | (2,800 | ) |  |  | 14,957 |
U.S. Treasury securities |  |  | 56,999 |  |  |  | — |  |  |  | (2,997 | ) |  |  | 54,002 |
Total |  | $ | 144,893 |  |  | $ | 738 |  |  | $ | (10,066 | ) |  | $ | 135,565 |
|  | Held-to-Maturity |
|  | December 31, 2023 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |
|  | (Dollars in Thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | 575 |  |  | $ | — |  |  | $ | (22 | ) |  | $ | 553 |
Obligations of U.S. government-sponsored agencies |  |  | 471 |  |  |  | — |  |  |  | (34 | ) |  |  | 437 |
Obligations of states and political subdivisions |  |  | 58 |  |  |  | — |  |  |  | (7 | ) |  |  | 51 |
Total |  | $ | 1,104 |  |  | $ | — |  |  | $ | (63 | ) |  | $ | 1,041 |
Maturities of Investment Securities Available-for-Sale and Held-to-Maturity | The scheduled maturities of investment securities available-for-sale and held-to-maturity as of September 30, 2024 are presented in the following table:
|  | Available-for-Sale |  |  | Held-to-Maturity |
|  | Amortized Cost |  |  | Estimated Fair Value |  |  | Amortized Cost |  |  | Estimated Fair Value |
|  | (Dollars in Thousands) |
Maturing within one year |  | $ | 24,190 |  |  | $ | 23,702 |  |  | $ | — |  |  | $ | — |
Maturing after one to five years |  |  | 28,234 |  |  |  | 26,885 |  |  |  | 287 |  |  |  | 280 |
Maturing after five to ten years |  |  | 51,525 |  |  |  | 47,372 |  |  |  | 326 |  |  |  | 309 |
Maturing after ten years |  |  | 45,056 |  |  |  | 46,316 |  |  |  | 156 |  |  |  | 147 |
Total |  | $ | 149,005 |  |  | $ | 144,275 |  |  | $ | 769 |  |  | $ | 736 |
Schedule of Fair Value and Unrealized Loss on Investments for Securities for Which Allowance for Credit Losses has not been Recorded | The following tables reflect fair value and gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of September 30, 2024 and December 31, 2023.
|  | Available-for-Sale |
|  | September 30, 2024 |
|  | Less than 12 Months |  |  | 12 Months or More |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
|  | (Dollars in Thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | — |  |  | $ | — |  |  | $ | 30,705 |  |  | $ | (1,971 | )
Commercial |  |  | — |  |  |  | — |  |  |  | 5,769 |  |  |  | (179 | )
Obligations of U.S. government-sponsored agencies |  |  | — |  |  |  | — |  |  |  | 4,616 |  |  |  | (463 | )
Obligations of states and political subdivisions |  |  | — |  |  |  | — |  |  |  | 1,555 |  |  |  | (33 | )
Corporate notes |  |  | — |  |  |  | — |  |  |  | 13,512 |  |  |  | (2,243 | )
U.S. Treasury securities |  |  | — |  |  |  | — |  |  |  | 42,349 |  |  |  | (1,667 | )
Total |  | $ | — |  |  | $ | — |  |  | $ | 98,506 |  |  | $ | (6,556 | )
|  | Held-to-Maturity |
|  | September 30, 2024 |
|  | Less than 12 Months |  |  | 12 Months or More |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
|  | (Dollars in Thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | — |  |  | $ | — |  |  | $ | 304 |  |  | $ | (9 | )
Obligations of U.S. government-sponsored agencies |  |  | — |  |  |  | — |  |  |  | 393 |  |  |  | (21 | )
Obligations of states and political subdivisions |  |  | — |  |  |  | — |  |  |  | 39 |  |  |  | (3 | )
Total |  | $ | — |  |  | $ | — |  |  | $ | 736 |  |  | $ | (33 | )
|  | Available-for-Sale |
|  | December 31, 2023 |
|  | Less than 12 Months |  |  | 12 Months or More |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
|  | (Dollars in Thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 94 |  |  | $ | (1 | ) |  | $ | 35,584 |  |  | $ | (3,072 | )
Commercial |  |  | 600 |  |  |  | (5 | ) |  |  | 8,408 |  |  |  | (401 | )
Obligations of U.S. government-sponsored agencies |  |  | — |  |  |  | — |  |  |  | 4,367 |  |  |  | (727 | )
Obligations of states and political subdivisions |  |  | — |  |  |  | — |  |  |  | 1,558 |  |  |  | (63 | )
Corporate notes |  |  | 771 |  |  |  | (229 | ) |  |  | 14,186 |  |  |  | (2,571 | )
U.S. Treasury securities |  |  | — |  |  |  | — |  |  |  | 54,002 |  |  |  | (2,997 | )
Total |  | $ | 1,465 |  |  | $ | (235 | ) |  | $ | 118,105 |  |  | $ | (9,831 | )
|  | Held-to-Maturity |
|  | December 31, 2023 |
|  | Less than 12 Months |  |  | 12 Months or More |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
|  | (Dollars in Thousands) |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |
Commercial |  | $ | — |  |  | $ | — |  |  | $ | 553 |  |  | $ | (22 | )
Obligations of U.S. government-sponsored agencies |  |  | — |  |  |  | — |  |  |  | 437 |  |  |  | (34 | )
Obligations of states and political subdivisions |  |  | — |  |  |  | — |  |  |  | 51 |  |  |  | (7 | )
Total |  | $ | — |  |  | $ | — |  |  | $ | 1,041 |  |  | $ | (63 | )
Available-for-Sale Considerations For any securities classified as available-for-sale that are in an unrealized loss position as of the balance sheet date, the Company assesses whether or not it intends to sell the security, or more-likely-than-not will be required to sell the security, before recovery of its amortized cost basis which would require a write-down to fair value through net income. As of September 30, 2024, 96 available-for-sale debt securities had been in a loss position for more than 12 months, and there were no available-for-sale debt securities that had been in a loss position for less than 12 months. As of December 31, 2023, 108 available-for-sale debt securities had been in a loss position for more than 12 months, and three available-for-sale debt securities had been in a loss position for less than 12 months. As of September 30, 2024, the Company had the current intent and ability to retain its investments for a period of time that management believes to be sufficient to allow for any anticipated recovery of fair value. As of September 30, 2024 and December 31, 2023, the losses for all available-for-sale securities were considered to be a direct result of the effect that the prevailing interest rate environment had on the value of debt securities and were not related to the creditworthiness of the issuers. Accordingly, no allowance for credit losses was considered necessary related to available-for-sale securities as of September 30, 2024 or December 31, 2023. Held-to-Maturity Considerations Effective January 1, 2023, the Company adopted the current expected credit loss ("CECL") accounting model to evaluate credit losses in the held-to-maturity investment portfolio. Each quarter, management evaluates the portfolio on a collective basis by major security type to determine whether an allowance for credit losses is needed. Qualitative factors are used in the Company’s credit loss assessments, including current and forecasted economic conditions, the characteristics of the debt issuer, and the historic ability of the issuer to make contractual principal and interest payments. Specifically, with regard to mortgage-backed securities or obligations of U.S. government sponsored agencies thereof, it is expected that the securities will not be settled at prices less than the amortized cost bases of the securities as such securities are either backed by the full faith and credit of the U.S. government or the agency. With regard to obligations of states and political subdivisions, management considers issuer bond ratings, historical loss rates for given bond ratings, and whether the issuers continue to make timely principal and interest payments under contractual terms of the securities. Based on these evaluations, no allowance for credit losses was recorded by the Company for the held-to-maturity investment portfolio as of September 30, 2024 or December 31, 2023. Pledged Securities Investment securities with a carrying value of $39.6 million and $41.4 million as of September 30, 2024 and December 31, 2023, respectively, were pledged to secure public deposits and for other purposes.

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