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v3.23.3

Investment Securities - Narrative (Details) | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2022 USD ($) security | Dec. 31, 2022 USD ($) security | Sep. 30, 2023 USD ($) bond company state security | Sep. 30, 2014 USD ($)
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
AFS allowance |  |  | $ 0 |  |
HTM allowance for credit losses | $ 0 | $ 0 | 432,000 | [1] |
Amortized cost | $ 381,906,000 | $ 393,896,000 | $ 387,806,000 |  |
Number of securities temporarily impaired (security) | security | 912 | 869 | 941 |  |
Number of securities temporarily impaired for twelve months or more (security) | security | 138 | 300 |  |  |
Period of temporary impairment | 12 months | 12 months |  |  |
Financing receivable, threshold period past due |  |  | 30 days |  |
Debt securities, held-to-maturity, nonaccrual |  |  | $ 0 |  |
Amortized cost of securities transferred |  |  |  |  | $ 89,780,000
Fair value of securities transferred |  |  |  |  | 89,757,000
Net unrealized loss, net of taxes on transferred securities |  |  |  |  | $ 15,000
Unamortized balance of net unrealized losses transferred | $ 67,000 | $ 64,000 | $ 58,000 |  |
Number of states | state |  |  | 6 |  |
FHLB stock investment | 3,477,000 | 2,846,000 | $ 2,823,000 |  |
Federal reserve bank stock | 1,037,000 | 1,037,000 | 1,037,000 |  |
Impairment losses |  |  | 0 |  |
Other equity securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Securities pledged as collateral | 343,677,000 | 350,411,000 | 383,946,000 |  |
Agency and mortgage-backed securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
HTM allowance for credit losses |  |  | $ 0 |  |
Municipal Bonds |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Number of private activity bonds | bond |  |  | 2 |  |
Amortized cost |  |  | $ 19,734,000 |  |
Corporate securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
HTM allowance for credit losses |  | 0 | 220,000 |  |
Amortized cost | 29,750,000 | 34,750,000 | $ 34,750,000 |  |
Number of individual companies | company |  |  | 14 |  |
U.S. Treasury & Agency securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
HTM allowance for credit losses |  |  | $ 0 |  |
Amortized cost | $ 38,100,000 | $ 40,100,000 | $ 40,100,000 |  |
[1] | December 31, 2022 and September 30, 2022 had no allowance for credit losses

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