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v3.23.1

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Jan. 01, 2023 | Apr. 30, 2021
Significant Accounting Policies [Line Items] |  |  |  |
Stock issued during period, value, new issues | $ 147,000 | $ 133,000 |  |
Stock repurchased during period, shares (in shares) | 0 |  |  |
Stock repurchased during period, value |  | $ 682,000 |  |
Stock repurchase program, number of shares authorized to be repurchased (in shares) |  |  |  | 375,388
Stock repurchase program, percent of stock outstanding |  |  |  | 5.00%
Allowance for credit loss | $ 0 |  | $ 7,200,000 |
Additional allowance for credit loss on unfunded commitments |  |  | 3,300,000 |
Number of days individually evaluation | 60 days |  |  |
Other Assets [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Allowance for credit loss |  |  | 1,500,000 |
Additional allowance for credit loss on unfunded commitments |  |  | 688,000 |
Retained Earnings [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Allowance for credit loss |  |  | 5,500,000 |
Additional allowance for credit loss on unfunded commitments |  |  | $ 2,600,000 |
Directors' Stock Purchase Plan [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Stock issued during period, shares, new issues (in shares) | 3,220 |  |  |
Stock issued during period, value, new issues | $ 94,000 |  |  |
Employee Stock Purchase Plan [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Stock issued during period, shares, new issues (in shares) | 2,431 |  |  |
Stock issued during period, value, new issues | $ 53,000 |  |  |

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