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Loans and Allowance for Credit Losses on Loans - Transactions In The Allowance For Loan Losses ("ALL") (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Balance | $ 3,517 | $ 3,420 | $ 3,486 | $ 3,390
(Release) provision for credit losses |  | 30 | 30 | 60
Recoveries |  | 1 | 1 | 1
Balance | 3,517 | 3,451 | 3,517 | 3,451
CRE [Member] |  |  |  |
Balance | 733 | 745 | 710 | 830
(Release) provision for credit losses | (79) |  | (56) | (85)
Balance | 654 | 745 | 654 | 745
MF [Member] |  |  |  |
Balance | 58 | 75 | 59 | 76
(Release) provision for credit losses | (1) | 32 | (2) | 31
Balance | 57 | 107 | 57 | 107
C+I [Member] |  |  |  |
Balance | 200 | 251 | 233 | 236
(Release) provision for credit losses | 2 | (17) | (31) | (2)
Balance | 202 | 234 | 202 | 234
ADL [Member] |  |  |  |
Balance | 119 | 80 | 87 | 105
(Release) provision for credit losses | (27) | (10) | 5 | (35)
Balance | 92 | 70 | 92 | 70
RES [Member] |  |  |  |
Balance | 1,646 | 1,600 | 1,612 | 1,601
(Release) provision for credit losses | (86) | 8 | (52) | 7
Balance | 1,560 | 1,608 | 1,560 | 1,608
HELOC [Member] |  |  |  |
Balance | 232 | 169 | 214 | 156
(Release) provision for credit losses | 5 | 2 | 23 | 15
Balance | 237 | 171 | 237 | 171
CON [Member] |  |  |  |
Balance | 554 | 372 | 439 | 357
(Release) provision for credit losses | (12) | 69 | 102 | 84
Recoveries |  | 1 | 1 | 1
Balance | 542 | 442 | 542 | 442
Unallocated [Member] |  |  |  |
Balance | (25) | 128 | 132 | 29
(Release) provision for credit losses | 198 | (54) | 41 | 45
Balance | $ 173 | $ 74 | $ 173 | $ 74

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