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Loans and Allowance for Credit Losses on Loans - Analysis Of Past Due Loans By Portfolio Segment Including Non-Accrual Loans Without ACL (Detail) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Total Loans | $ 433,544 | $ 438,967
Non-Accrual Loans | 194 |
30-59 Days Past Due [Member] |  |
Total Loans | 507 |
60-89 Days Past Due [Member] |  |
Total Loans | 182 |
Greater than 90 Days [Member] |  |
Total Loans | 12 |
Total Past Due |  |
Total Loans | 701 |
Current |  |
Total Loans | 432,843 | 438,967
CRE [Member] |  |
Total Loans | 87,207 | 86,020
CRE [Member] | Current |  |
Total Loans | 87,207 | 86,020
MF [Member] |  |
Total Loans | 4,701 | 5,752
MF [Member] | Current |  |
Total Loans | 4,701 | 5,752
C+I [Member] |  |
Total Loans | 24,682 | 23,711
C+I [Member] | Current |  |
Total Loans | 24,682 | 23,711
ADL [Member] |  |
Total Loans | 12,054 | 14,946
ADL [Member] | Current |  |
Total Loans | 12,054 | 14,946
RES [Member] |  |
Total Loans | 271,089 | 275,235
Non-Accrual Loans | 65 |
RES [Member] | 30-59 Days Past Due [Member] |  |
Total Loans | 492 |
RES [Member] | 60-89 Days Past Due [Member] |  |
Total Loans | 65 |
RES [Member] | Total Past Due |  |
Total Loans | 557 |
RES [Member] | Current |  |
Total Loans | 270,532 | 275,235
HELOC [Member] |  |
Total Loans | 21,448 | 20,908
HELOC [Member] | 30-59 Days Past Due [Member] |  |
Total Loans | 15 |
HELOC [Member] | Total Past Due |  |
Total Loans | 15 |
HELOC [Member] | Current |  |
Total Loans | 21,433 | 20,908
CON [Member] |  |
Total Loans | 12,363 | 12,395
Non-Accrual Loans | 129 |
CON [Member] | 60-89 Days Past Due [Member] |  |
Total Loans | 117 |
CON [Member] | Greater than 90 Days [Member] |  |
Total Loans | 12 |
CON [Member] | Total Past Due |  |
Total Loans | 129 |
CON [Member] | Current |  |
Total Loans | $ 12,234 | $ 12,395

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