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v3.22.1

Borrowings - Additional Information (Details) - USD ($) |  | 3 Months Ended |
--- | --- | --- | ---
Oct. 01, 2021 | Mar. 31, 2022 | Dec. 31, 2021
Short Term Debt [Line Items] |  |  |
Federal Funds Purchased |  | $ 0 | $ 0
Securities Sold under Agreements to Repurchase, Total |  | 62,000 | 46,000
Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months, Total |  | 10,100,000 | 10,000,000.0
Long-term Federal Home Loan Bank advances |  | 0 | 0
Long-term borrowings total |  | $ 10,671,000 | 10,653,000
Subordinated Debt [Member] |  |  |
Short Term Debt [Line Items] |  |  |
Maturity date | Oct. 01, 2031 |  |
Interest rate, description |  | The Notes bear interest at a rate of 3.50% per annum for the first five years, after which the interest rate will be reset quarterly to a benchmark interest rate per annum which, subject to certain conditions provided in the Notes, will be equal to the then current three-month term Secured Overnight Financing Rate (“SOFR”) plus 275 basis points. |
Variable rate, description |  | three-month term Secured Overnight Financing Rate (“SOFR”) plus 275 basis points |
Interest rate | 3.50% |  |
Variable interest rate | 2.75% |  |
Investment into capital surplus | $ 5,000,000 |  |
Long-term borrowings total |  | $ 10,671,000 | $ 10,700,000
Private Placement [Member] | Subordinated Debt [Member] |  |  |
Short Term Debt [Line Items] |  |  |
Principal amount | $ 11,000,000.0 |  |
Minimum [Member] |  |  |
Short Term Debt [Line Items] |  |  |
Maturity Period of Federal Funds |  | 1 day |
Maximum [Member] |  |  |
Short Term Debt [Line Items] |  |  |
Maturity Period of Federal Funds |  | 4 days |

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