Allowance for Credit Losses - Additional Information (Detail) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Accounts Notes And Loans Receivable [Line Items] | |||||
| Allowance for credit losses | $ 1,251,000 | $ 1,171,000 | $ 483,000 | $ 2,419,000 | |
| Number of days reaching where loans are considered for nonaccrual status | 90 days | ||||
| Conditions where loans are considered for nonaccrual status | A loan may be returned to accruing status only if one of two conditions are met: (1) the loan is well-secured and none of the principal and interest has been past due for a minimum of 90 days or (2) the principal and interest payments are reasonably assured and a sustained period of performance has occurred, generally six months. | ||||
| Loans modified as troubled debt restructuring | 0 | $ 0 | $ 0 | $ 0 | |
| Individually evaluated loans | greater than $350 | ||||
| Foreclosed assets | 0 | $ 0 | $ 0 | ||
| Residential mortgages in process of foreclosure | $ 3,142,000 | $ 3,142,000 | $ 1,228,000 | ||