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%