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Loans and Allowance for Credit Losses - Loans - Allowance for Credit Losses (Details) | 12 Months Ended
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Dec. 31, 2023 USD ($) borrower | Dec. 31, 2022 USD ($) borrower
Financing Receivable, Allowance For Credit Losses [Line Items] |  |
Number of borrowers | borrower | 12 | 19
Loans charged off | $ 203,000 | $ 392,000
Term Loans by Origination Year |  |
2021 | 47,000 |
2020 | 43,000 |
2019 | 27,000 |
Prior | 86,000 |
Total | 203,000 | $ 392,000
Consumer | Consumer Loans |  |
Financing Receivable, Allowance For Credit Losses [Line Items] |  |
Loans charged off | 79,000 |
Term Loans by Origination Year |  |
Prior | 79,000 |
Total | 79,000 |
Automobile | Consumer Loans |  |
Financing Receivable, Allowance For Credit Losses [Line Items] |  |
Loans charged off | 124,000 |
Term Loans by Origination Year |  |
2021 | 47,000 |
2020 | 43,000 |
2019 | 27,000 |
Prior | 7,000 |
Total | $ 124,000 |

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