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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 | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Term Extension [Member] |  |  |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |  |  |
Amortized cost | $ 184 | $ 199 | $ 478 | $ 242
Extended Maturity and Interest Rate Reduction [Member] |  |  |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |  |  |
Amortized cost | 30 | 171 | 30 | 171
Residential [Member] | Term Extension [Member] |  |  |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |  |  |
Amortized cost | $ 184 | $ 199 | $ 478 | $ 242
% of total class of financing receivables | 0.007% | 0.009% | 0.018% | 0.011%
Residential [Member] | Extended Maturity and Interest Rate Reduction [Member] |  |  |  |
Modified Loans Disaggregated by Class of Financing Receivable and Type of Concession Granted [Abstract] |  |  |  |
Amortized cost | $ 30 | $ 171 | $ 30 | $ 171
% of total class of financing receivables | 0.001% | 0.008% | 0.001% | 0.008%

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