Commitments and Contingencies - Outstanding Financial Instruments Whose Contract Amounts Represent Credit Risk (Detail) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Loss Contingencies [Line Items]
Total commitments	$ 246,563	$ 230,154
Commitments to Extend Credit [Member]
Loss Contingencies [Line Items]
Total commitments	211,760	195,681
Credit Card Commitments [Member]
Loss Contingencies [Line Items]
Total commitments	26,853	26,453
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Total commitments	$ 7,950	$ 8,020

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details