v3.25.2
Loans - Schedule of Collateral-dependent Loans (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]    
Collateral dependent loans $ 3,597 $ 2,988
Consumer Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Collateral dependent loans 3,018 2,384
Agricultural Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Collateral dependent loans 371 125
Agricultural Loan [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Collateral dependent loans 50 50
Commercial Real Estate [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Collateral dependent loans 140 360
Commercial and Industrial [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Collateral dependent loans   28
Consumer [Member]    
Financing Receivable, Credit Quality Indicator [Line Items]    
Collateral dependent loans $ 18 $ 41