Loans - Analysis of Allowance for Credit Losses (Detail) - Unfunded Loan Commitment & Letters of Credit [Member] - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
|
| ALLOWANCE FOR CREDIT LOSSES: | |||||
| Balance at beginning of year | $ 1,281 | $ 1,946 | $ 1,541 | $ 2,212 | $ 2,212 |
| Provision for (recovery of) credit losses - off balance sheet credit exposures | 27 | (18) | (233) | (284) | (671) |
| Balance at ending of year | $ 1,308 | $ 1,928 | $ 1,308 | $ 1,928 | $ 1,541 |