Loans - Summary of Age Analysis of Past Due Loans Segregated by Portfolio Segment and Class of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	$ 8,714	$ 8,413
Total Loans Receivable	923,231	897,781
30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	14,811	13,568
60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	6,940	3,199
90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	16,170	17,227
Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	37,921	33,994
Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	885,310	863,787
Residential Mortgage Loans [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,098	69
Total Loans Receivable	259,312	258,959
Residential Mortgage Loans [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	3,010	1,462
Residential Mortgage Loans [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	778	2,269
Residential Mortgage Loans [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,605	1,770
Residential Mortgage Loans [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	5,393	5,501
Residential Mortgage Loans [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	253,919	253,458
Residential Mortgage Loans [Member] | Residential 1-4 Family First Mortgages [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,098	69
Total Loans Receivable	255,235	257,604
Residential Mortgage Loans [Member] | Residential 1-4 Family First Mortgages [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	3,010	1,462
Residential Mortgage Loans [Member] | Residential 1-4 Family First Mortgages [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	778	2,269
Residential Mortgage Loans [Member] | Residential 1-4 Family First Mortgages [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,605	1,770
Residential Mortgage Loans [Member] | Residential 1-4 Family First Mortgages [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	5,393	5,501
Residential Mortgage Loans [Member] | Residential 1-4 Family First Mortgages [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	249,842	252,103
Residential Mortgage Loans [Member] | Construction [Member]
Recorded Investment, Past Due [Line Items]
Total Loans Receivable	4,077	1,355
Residential Mortgage Loans [Member] | Construction [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Residential Mortgage Loans [Member] | Construction [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Residential Mortgage Loans [Member] | Construction [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Residential Mortgage Loans [Member] | Construction [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Residential Mortgage Loans [Member] | Construction [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	4,077	1,355
Commercial Loans [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	7,553	7,137
Total Loans Receivable	534,507	524,167
Commercial Loans [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	9,954	10,912
Commercial Loans [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	5,760	518
Commercial Loans [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	13,664	12,317
Commercial Loans [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	29,378	23,747
Commercial Loans [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	505,129	500,420
Commercial Loans [Member] | Real Estate [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	4,247	3,058
Total Loans Receivable	378,805	358,707
Commercial Loans [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	6,718	5,385
Commercial Loans [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	5,406	196
Commercial Loans [Member] | Real Estate [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	5,950	5,053
Commercial Loans [Member] | Real Estate [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	18,074	10,634
Commercial Loans [Member] | Real Estate [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	360,731	348,073
Commercial Loans [Member] | Lines of Credit [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,355	0
Total Loans Receivable	64,672	72,069
Commercial Loans [Member] | Lines of Credit [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	2,407	180
Commercial Loans [Member] | Lines of Credit [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	61	0
Commercial Loans [Member] | Lines of Credit [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,391	924
Commercial Loans [Member] | Lines of Credit [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	3,859	1,104
Commercial Loans [Member] | Lines of Credit [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	60,813	70,965
Commercial Loans [Member] | Other Commercial and Industrial [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,951	4,079
Total Loans Receivable	88,247	89,803
Commercial Loans [Member] | Other Commercial and Industrial [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	829	5,347
Commercial Loans [Member] | Other Commercial and Industrial [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	293	322
Commercial Loans [Member] | Other Commercial and Industrial [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	6,323	6,340
Commercial Loans [Member] | Other Commercial and Industrial [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	7,445	12,009
Commercial Loans [Member] | Other Commercial and Industrial [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	80,802	77,794
Commercial Loans [Member] | Paycheck Protection Program Loans [Member]
Recorded Investment, Past Due [Line Items]
Total Loans Receivable	125	158
Commercial Loans [Member] | Paycheck Protection Program Loans [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Commercial Loans [Member] | Paycheck Protection Program Loans [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Commercial Loans [Member] | Paycheck Protection Program Loans [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Commercial Loans [Member] | Paycheck Protection Program Loans [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Commercial Loans [Member] | Paycheck Protection Program Loans [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	125	158
Commercial Loans [Member] | Tax Exempt Loans [Member]
Recorded Investment, Past Due [Line Items]
Total Loans Receivable	2,658	3,430
Commercial Loans [Member] | Tax Exempt Loans [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Commercial Loans [Member] | Tax Exempt Loans [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Commercial Loans [Member] | Tax Exempt Loans [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Commercial Loans [Member] | Tax Exempt Loans [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	0	0
Commercial Loans [Member] | Tax Exempt Loans [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	2,658	3,430
Consumer Loans [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	63	1,207
Total Loans Receivable	129,412	114,655
Consumer Loans [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,847	1,194
Consumer Loans [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	402	412
Consumer Loans [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	901	3,140
Consumer Loans [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	3,150	4,746
Consumer Loans [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	126,262	109,909
Consumer Loans [Member] | Home Equity and Junior Liens [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	60	0
Total Loans Receivable	52,709	34,858
Consumer Loans [Member] | Home Equity and Junior Liens [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,372	210
Consumer Loans [Member] | Home Equity and Junior Liens [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	168	29
Consumer Loans [Member] | Home Equity and Junior Liens [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	422	192
Consumer Loans [Member] | Home Equity and Junior Liens [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,962	431
Consumer Loans [Member] | Home Equity and Junior Liens [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	50,747	34,427
Consumer Loans [Member] | Other Consumer [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	3	1,207
Total Loans Receivable	76,703	79,797
Consumer Loans [Member] | Other Consumer [Member] | 30-59 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	475	984
Consumer Loans [Member] | Other Consumer [Member] | 60-89 Days Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	234	383
Consumer Loans [Member] | Other Consumer [Member] | 90 Days and Over [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	479	2,948
Consumer Loans [Member] | Other Consumer [Member] | Total Past Due [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	1,188	4,315
Consumer Loans [Member] | Other Consumer [Member] | Current [Member]
Recorded Investment, Past Due [Line Items]
Nonaccrual loans without related allowance for credit loss	$ 75,515	$ 75,482