v3.25.4
Investment Securities - Additional Information (Details)
12 Months Ended
Dec. 31, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Debt Instrument [Line Items]      
Number of debt securities with unrealized losses | security 208    
Percentage of gross unrealized losses (as percent) 6.30%    
Percentage of amortized investment securities portfolio (as percent) 5.70%    
Number of investment securities in a continuous loss position for over 12 months | security 203    
Loss duration (in months) 12 months    
Allowance for credit losses on available-for-sale securities $ 0    
Allowance for credit losses on held-to-maturity securities 0 $ 0  
Gross gains 0 0 $ 98,000
Gross losses 0 0 $ 347,000
Accrued interest receivable 1,305,000 1,471,000  
Public Deposits      
Debt Instrument [Line Items]      
Securities pledged to secure public deposits 140,110,000 134,887,000  
Federal Reserve Discount Window and U.S. Bankruptcy Trustee      
Debt Instrument [Line Items]      
Securities pledged to secure public deposits $ 2,370,000 $ 2,778,000