v3.26.1
Fair Value Qualitative information about Level 3 fair value measurements (Details)
$ in Thousands
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value $ 3,804 $ 4,061
Estimate of Fair Value Measurement [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value   4,061
Fair Value, Inputs, Level 3 [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value 3,804 4,061
Fair Value, Inputs, Level 3 [Member] | Residential Real Estate [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired other real estate Fair Value 19,678  
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Financial And Agricultural [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value 30 3,674
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value   370
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value 3,099  
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Real Estate [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value   $ 17
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Real Estate [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value 398  
Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Construction Real Estate [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Nonrecurring [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loan Fair Value $ 277  
Minimum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Financial And Agricultural [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.000 0.050
Minimum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.000 0.000
Minimum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member] | Measurement Input, Cap Rate [Member] | Valuation, Income Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.060 0.100
Minimum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.002 0.119
Impaired Other Real estate Receivable, Measurement Input 0.000  
Minimum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Real Estate [Member] | Measurement Input, Cap Rate [Member] | Valuation, Income Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Other Real estate Receivable, Measurement Input 0.058  
Minimum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Construction Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.012  
Minimum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Construction Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Cost Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.100  
Maximum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Financial And Agricultural [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.000 0.460
Maximum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.260 0.100
Maximum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member] | Measurement Input, Cap Rate [Member] | Valuation, Income Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.100  
Maximum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.270 0.389
Impaired Other Real estate Receivable, Measurement Input 0.240  
Maximum [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Construction Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.150  
Weighted Average [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Financial And Agricultural [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.000 0.255
Weighted Average [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.125 0.038
Weighted Average [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate [Member] | Measurement Input, Cap Rate [Member] | Valuation, Income Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.066 0.100
Weighted Average [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.120 0.254
Impaired Other Real estate Receivable, Measurement Input 0.120  
Weighted Average [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Real Estate [Member] | Measurement Input, Cap Rate [Member] | Valuation, Income Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Other Real estate Receivable, Measurement Input 0.058  
Weighted Average [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Construction Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.081  
Weighted Average [Member] | Loans Receivable [Member] | Fair Value, Inputs, Level 3 [Member] | Construction Real Estate [Member] | Measurement Input, Comparability Adjustment [Member] | Valuation, Cost Approach [Member]    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Impaired Loans Receivable, Measurement Input 0.100