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Borrowings - Schedule of short-term borrowings (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021
Short-Term Debt [Line Items] |  |
Total short-term debt | $ 16,225,000 | $ 17,678,000
Federal funds purchased | 0 | 0
FHLB advances maturing in less than one year from date of origination, and the current portion of long-term FHLB advances due within 12 months |  |
Short-Term Debt [Line Items] |  |
Total short-term debt | 4,225,000 | 5,678,000
Term Loan, current portion due within 12 months |  |
Short-Term Debt [Line Items] |  |
Total short-term debt | $ 12,000,000 | $ 12,000,000
Minimum |  |
Short-Term Debt [Line Items] |  |
Short-term borrowings, mature period | 1 day |
Maximum |  |
Short-Term Debt [Line Items] |  |
Short-term borrowings, mature period | 90 days |

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