Other Non-Interest Income and Expense (Narrative) (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
|
| Other Income and Expenses [Abstract] | |||
| Minimum percentage of the aggregate total net interest income and total non interest income required for amounts to be stated separately | 1.00% | 1.00% | 1.00% |
| Payment for services provided by related party | $ 545 | $ 257 | $ 551 |