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Loans - Additional Information (Details) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 USD ($) payment loan | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Paycheck protection program | $ 315,000 |  | $ 25,800,000
Deferred loan costs | $ 2,600,000 |  | 1,900,000
Period of loan sold by mortgage company | 30 days |  |
Minimum period seldom held | 90 days |  |
Mortgage warehousing maximum pay off period | 30 days |  |
Nonaccrual interest income | $ 0 | $ 0 |
Non–accrual | 14,771,000 |  | 14,962,000
Non-performing TDRs | $ 1,700,000 |  | 1,500,000
Restructured loan returned to accruing status number of consecutive payments of loan | payment | 6 |  |
Restructured loan reported in TDRs | $ 4,194,000 |  | 3,912,000
Specific reserves allocated to troubled debt restructuring | 0 |  |
Minimum |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans with an aggregate credit exposure | $ 3,000,000 |  |
Loans classified as TDR after a period (in days) | 90 days |  |
Minimum | Good Pass |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of consecutive years of profit for good pass rating (in years) | 3 years |  |
Number of consecutive years of profit unaudited financial information for good pass rating (in years) | 5 years |  |
Number of years of satisfactory relationship with bank for good pass rating (in years) | 5 years |  |
Maximum |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans with an aggregate credit exposure | $ 6,000,000 |  |
Loans classified as TDR after a period (in days) | 120 days |  |
Maximum | Satisfactory Pass |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Minimum number of years of satisfactory repayment required for satisfactory pass rating (in years) | 2 years |  |
CARES Act |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Restructured loan reported in TDRs | $ 1,000 |  | $ 10,900,000
Performing |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Restructured loan reported in TDRs | $ 2,500,000 |  |
Number TDRs returned to accrual status | loan | 2 |  |
Loans Purchased With Evidence of Credit Deterioration |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Non–accrual | $ 1,700,000 |  |
Non-performing TDRs | $ 157,000 |  |

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