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Investment Securities - Non-Marketable Securities Included in Other Assets (Details) | 12 Months Ended |
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Dec. 31, 2022 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) shares | Feb. 22, 2023
Schedule of Equity Method Investments [Line Items] |  |  |
Federal home loan bank stock, par value (in usd per share) | $ / shares | $ 100 |  |
Investments in low income housing tax credit funds | $ 2,500,000 | $ 3,000,000 |
Low income housing tax credits and other tax benefits | 634,000 |  |
Low income housing amortization expense | 533,000 |  |
Unfunded commitments for low income housing tax credit funds | 386,000 |  |
Low-income housing tax credit investment |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Impairment losses | $ 0 | $ 0 |
Visa Inc. Class B common stock |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Number of shares of securities carried at cost (in shares) | shares | 10,439 | 10,439 |
Carrying value of securities carried at cost | $ 0 | $ 0 |
Fair value of Class B common stock | $ 3,500,000 | $ 3,700,000 |
Visa Inc. | Visa Inc. Class B common stock |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Conversion rate on common stock | 1.5991 | 1.6181 |
Subsequent event |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Federal home loan bank, dividend rate percentage |  |  | 7.00%
Other assets |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Federal home loan bank stock | $ 16,700,000 | $ 16,700,000 |

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- Definition Amount of investment in qualified affordable housing projects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 740 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985 + Details
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