Allowance for Credit Losses - Loan Rating and Year of Origination (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2024	Dec. 31, 2023
Term Loans Amortized Cost Basis by Origination Year
Loans, gross	$ 1,909,409	$ 1,742,139
Revolving Loans Converted to Term During The Period	154,000
Commercial and consumer loan portfolio
Term Loans Amortized Cost Basis by Origination Year
2024	214,087	225,488
2023	218,028	287,252
2022	294,659	234,752
2021	206,682	187,479
2020	172,970	64,335
Prior	241,284	204,500
Revolving Loans Recorded Balance	83,771	68,946
Loans, gross	1,432,109	1,273,629
Revolving Loans Converted to Term	628	877
Commercial and consumer loan portfolio \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	213,935	225,426
2023	217,107	287,252
2022	294,659	229,021
2021	201,058	187,376
2020	172,868	64,259
Prior	239,551	203,065
Revolving Loans Recorded Balance	83,771	68,946
Loans, gross	1,423,300	1,266,069
Revolving Loans Converted to Term	351	724
Commercial and consumer loan portfolio \| Special Mention
Term Loans Amortized Cost Basis by Origination Year
2024	24	62
2023	921
2022		5,731
2021	5,624
Prior	1,166	1,003
Loans, gross	7,811	6,881
Revolving Loans Converted to Term	76	85
Commercial and consumer loan portfolio \| Substandard
Term Loans Amortized Cost Basis by Origination Year
2021		103
2020	102	5
Prior	179	165
Loans, gross	370	273
Revolving Loans Converted to Term	89
Commercial and consumer loan portfolio \| Substandard Nonaccrual
Term Loans Amortized Cost Basis by Origination Year
2024	128
2020		71
Prior	388	267
Loans, gross	628	406
Revolving Loans Converted to Term	112	68
Commercial real estate
Term Loans Amortized Cost Basis by Origination Year
2024	71,877	81,324
2023	80,522	125,278
2022	123,080	161,536
2021	149,593	121,365
2020	112,031	37,383
Prior	164,432	141,117
Loans, gross	701,647	668,122
Revolving Loans Converted to Term	112	119
Commercial real estate \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	71,877	81,324
2023	80,522	125,278
2022	123,080	155,805
2021	143,969	121,365
2020	112,031	37,383
Prior	163,489	140,158
Loans, gross	695,080	661,432
Revolving Loans Converted to Term	112	119
Commercial real estate \| Special Mention
Term Loans Amortized Cost Basis by Origination Year
2022		5,731
2021	5,624
Prior	943	959
Loans, gross	6,567	6,690
Commercial business
Term Loans Amortized Cost Basis by Origination Year
2024	6,213	18,744
2023	14,275	18,190
2022	19,158	17,219
2021	14,247	12,062
2020	10,710	14,847
Prior	25,128	15,339
Revolving Loans Recorded Balance	25,587	18,686
Loans, gross	115,410	115,348
Revolving Loans Converted to Term	92	261
Commercial business \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	6,189	18,682
2023	14,223	18,190
2022	19,158	17,219
2021	14,247	12,062
2020	10,710	14,847
Prior	25,128	15,339
Revolving Loans Recorded Balance	25,587	18,686
Loans, gross	115,242	115,286
Revolving Loans Converted to Term		261
Commercial business \| Special Mention
Term Loans Amortized Cost Basis by Origination Year
2024	24	62
2023	52
Loans, gross	76	62
Commercial business \| Substandard Nonaccrual
Term Loans Amortized Cost Basis by Origination Year
Loans, gross	92
Revolving Loans Converted to Term	92
Construction - commercial real estate
Term Loans Amortized Cost Basis by Origination Year
2024	38,479	29,346
2023	50,213	36,907
2022	61,410
2021		3,515
2020	4,970
Loans, gross	155,072	69,768
Construction - commercial real estate \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	38,479	29,346
2023	50,213	36,907
2022	61,410
2021		3,515
2020	4,970
Loans, gross	155,072	69,768
Land acquisition and development
Term Loans Amortized Cost Basis by Origination Year
2024	19,073	4,562
2023	2,114	4,665
2022	2,662	9,844
2021	1,324	9,993
2020	8,601
Loans, gross	33,774	29,064
Land acquisition and development \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	19,073	4,562
2023	2,114	4,665
2022	2,662	9,844
2021	1,324	9,993
2020	8,601
Loans, gross	33,774	29,064
Builder lines
Term Loans Amortized Cost Basis by Origination Year
2024	23,913	17,919
2023	3,436	5,124
2022	1,430	1,221
2021	481
2020		404
Prior	404
Loans, gross	29,664	24,668
Builder lines \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	23,913	17,919
2023	3,436	5,124
2022	1,430	1,221
2021	481
2020		404
Prior	404
Loans, gross	29,664	24,668
Construction - consumer real estate
Term Loans Amortized Cost Basis by Origination Year
2024	11,329	7,889
2023	5,099	3,240
2022	358
Revolving Loans Recorded Balance	88	94
Loans, gross	16,874	11,223
Construction - consumer real estate \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	11,329	7,889
2023	5,099	3,240
2022	358
Revolving Loans Recorded Balance	88	94
Loans, gross	16,874	11,223
Residential mortgage
Term Loans Amortized Cost Basis by Origination Year
2024	39,338	59,441
2023	59,528	91,086
2022	84,733	44,292
2021	40,701	40,192
2020	36,425	11,586
Prior	49,870	46,659
Loans, gross	310,595	293,256
Residential mortgage \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	39,210	59,441
2023	58,659	91,086
2022	84,733	44,292
2021	40,701	40,089
2020	36,323	11,524
Prior	49,080	46,192
Loans, gross	308,706	292,624
Residential mortgage \| Special Mention
Term Loans Amortized Cost Basis by Origination Year
2023	869
Prior	223	44
Loans, gross	1,092	44
Residential mortgage \| Substandard
Term Loans Amortized Cost Basis by Origination Year
2021		103
2020	102
Prior	179	165
Loans, gross	281	268
Residential mortgage \| Substandard Nonaccrual
Term Loans Amortized Cost Basis by Origination Year
2024	128
2020		62
Prior	388	258
Loans, gross	516	320
Equity lines
Term Loans Amortized Cost Basis by Origination Year
2024	23
2022		34
2021		70
2020	70	5
Prior	839	866
Revolving Loans Recorded Balance	58,050	50,120
Loans, gross	59,406	51,592
Revolving Loans Converted to Term	424	497
Equity lines \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	23
2022		34
2021		70
2020	70
Prior	839	857
Revolving Loans Recorded Balance	58,050	50,120
Loans, gross	59,221	51,425
Revolving Loans Converted to Term	239	344
Equity lines \| Special Mention
Term Loans Amortized Cost Basis by Origination Year
Loans, gross	76	85
Revolving Loans Converted to Term	76	85
Equity lines \| Substandard
Term Loans Amortized Cost Basis by Origination Year
2020		5
Loans, gross	89	5
Revolving Loans Converted to Term	89
Equity lines \| Substandard Nonaccrual
Term Loans Amortized Cost Basis by Origination Year
Prior		9
Loans, gross	20	77
Revolving Loans Converted to Term	20	68
Other consumer
Term Loans Amortized Cost Basis by Origination Year
2024	3,842	6,263
2023	2,841	2,762
2022	1,828	606
2021	336	282
2020	163	110
Prior	611	519
Revolving Loans Recorded Balance	46	46
Loans, gross	9,667	10,588
Other consumer \| Pass
Term Loans Amortized Cost Basis by Origination Year
2024	3,842	6,263
2023	2,841	2,762
2022	1,828	606
2021	336	282
2020	163	101
Prior	611	519
Revolving Loans Recorded Balance	46	46
Loans, gross	$ 9,667	10,579
Other consumer \| Substandard Nonaccrual
Term Loans Amortized Cost Basis by Origination Year
2020		9
Loans, gross		$ 9

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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