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Allowance for Credit Losses - Loans - Additional information (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Provision (Recovery) $ (36,000) $ (293,000)    
Allowance for loan credit losses $ 827,000,000,000      
Percent increase in allowance for credit loss 5.60%      
Net loan charge-offs $ 64,000 $ 121,000    
Sale of other real estate owned (OREO) property $ 1,500,000      
Percentage of charge-offs 0.02% 0.05%    
Percentage of coverage on non-performing assets 101.00%     127.00%
Percentage Of Allowance For Total Loans 1.30%     1.30%
Percentage of general reserve 44.00%      
Percentage of quantitative reserve 56.00%      
Evaluated for impairment $ 150,000      
Provision for credit losses recovery on available for sale debt securities recorded 640,000 $ 319,000    
Pass        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Minimum individual loan balance requiring quarterly review 2,000,000      
Special Mention        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Minimum individual loan balance requiring quarterly review 250,000      
Substandard        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Minimum individual loan balance requiring quarterly review 250,000      
Doubtful        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Minimum individual loan balance requiring quarterly review 100,000      
Other commercial real estate (non-owner occupied)        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Provision (Recovery) 132,000 1,186,000    
Commercial Portfolio Segment | Commercial loan        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Minimum aggregate balances for commercial loan relationship under structure loan rating process 1,000,000      
Commercial Portfolio Segment | Commercial loan | Subsequent event        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Minimum percent of portfolio to be reviewed     36.00%  
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - retail        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Provision (Recovery) 122,000 $ 118,000    
Non-performing        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total non-performing assets $ 13,971,000     $ 12,657,000
Non-performing assets as a percent of loans 1.32%      
Non-performing | Commercial real estate loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
CRE loan transferred into non-accrual status $ 3,300,000      
Non-performing | Residential mortgage loans        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Reduction in non-accrual loans 300,000      
Non-performing | Other commercial real estate (non-owner occupied)        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total non-performing assets $ 8,730,000     $ 10,249,000