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Allowance for Credit Losses and Credit Quality of Loans, Amortized Cost Basis of Loans Modified to Borrowers Experiencing Financial Difficulty (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Interest Rate Reduction [Member] |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |
Amortized cost | $ 0 | $ 174
Term Extension [Member] |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |
Amortized cost | 1,200 | 311
Combination - Term Extension and Interest Rate Reduction [Member] |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |
Amortized cost | 282 | 160
Residential [Member] | Interest Rate Reduction [Member] |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |
Amortized cost | $ 0 | $ 174
% of total class of financing receivables | 0.00% | 0.007%
Residential [Member] | Term Extension [Member] |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |
Amortized cost | $ 1,200 | $ 311
% of total class of financing receivables | 0.045% | 0.012%
Residential [Member] | Combination - Term Extension and Interest Rate Reduction [Member] |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |
Amortized cost | $ 282 | $ 160
% of total class of financing receivables | 0.011% | 0.006%

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