v3.26.1
Loans and ACL - Summary of Accrued Interest Receivable by Loan Type Reversed from Income (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Financing Receivable, Nonaccrual [Line Items]    
Accrued interest receivable reversed through income $ 84 $ 117
Commercial and Industrial [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Accrued interest receivable reversed through income 9 70
Consumer [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Accrued interest receivable reversed through income 17 7
Real Estate [Member] | Construction, Commercial [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Accrued interest receivable reversed through income 1 0
Real Estate [Member] | Commercial [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Accrued interest receivable reversed through income 30 4
Real Estate [Member] | Residential [Member]    
Financing Receivable, Nonaccrual [Line Items]    
Accrued interest receivable reversed through income $ 27 $ 36