Loans - Credit Quality Indicators (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	$ 703,501	$ 899,034
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	792,838	628,578
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	519,887	429,480
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	344,185	224,846
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	164,593	191,012
Prior	548,654	483,884
Revolving Loans Amortized Cost Basis	139,250	126,373
Revolving Loan Converted to Term	0	0
Total	3,212,908	2,983,207
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff	366
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff	1,368
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff	2,122
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff	625
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff	397
Prior	299
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total	5,177	4,143
Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	54,584	42,038
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	34,047	28,718
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	23,470	17,125
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	9,772	8,335
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	4,107	8,129
Prior	16,559	23,873
Revolving Loans Amortized Cost Basis	13,685	12,075
Revolving Loan Converted to Term	0	0
Total	156,224	140,293
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff	0
Prior	0
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total	0
Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	81,732	163,143
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	171,426	115,111
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	107,035	127,618
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	123,378	44,459
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	42,197	69,073
Prior	217,555	185,794
Revolving Loans Amortized Cost Basis	2,164	1,824
Revolving Loan Converted to Term	0	0
Total	745,487	707,022
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff	0
Prior	0
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total	0
Consumer
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	405,307	483,288
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	356,000	286,299
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	196,350	155,426
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	93,918	88,490
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	44,287	39,009
Prior	15,337	12,119
Revolving Loans Amortized Cost Basis	468	504
Revolving Loan Converted to Term	0	0
Total	1,111,667	1,065,135
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff	366
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff	1,368
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff	2,122
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff	604
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff	397
Prior	266
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total	5,123	4,079
Residential
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	161,878	210,565
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	231,365	198,450
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	193,032	129,311
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	117,117	83,562
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	74,002	74,801
Prior	299,203	262,098
Revolving Loans Amortized Cost Basis	122,933	111,970
Revolving Loan Converted to Term	0	0
Total	1,199,530	1,070,757
Current-period gross charge-offs
Financing receivable, excluding accrued interest, year one, originated, current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year, writeoff	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year, writeoff	21
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year, writeoff	0
Prior	33
Revolving Loans Amortized Cost Basis
Revolving Loan Converted to Term
Total	54	30
Satisfactory | Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	54,584	42,038
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	34,047	28,718
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	23,470	16,870
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	9,655	7,857
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	4,107	8,129
Prior	13,360	20,379
Revolving Loans Amortized Cost Basis	8,586	8,909
Revolving Loan Converted to Term	0	0
Total	147,809	132,900
Satisfactory | Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	81,582	152,858
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	151,818	115,111
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	105,365	121,811
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	120,845	43,647
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	41,406	63,913
Prior	174,516	159,876
Revolving Loans Amortized Cost Basis	1,667	1,603
Revolving Loan Converted to Term	0	0
Total	677,199	658,819
Special mention | Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	117	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	0
Prior	0	30
Revolving Loans Amortized Cost Basis	0	30
Revolving Loan Converted to Term	0	0
Total	117	60
Special mention | Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	9,678
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	10,439	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	0	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	789
Prior	4,084	241
Revolving Loans Amortized Cost Basis	0	0
Revolving Loan Converted to Term	0	0
Total	14,523	10,708
Substandard | Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	255
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	0	478
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	0
Prior	3,199	3,464
Revolving Loans Amortized Cost Basis	5,099	3,136
Revolving Loan Converted to Term	0	0
Total	8,298	7,333
Substandard | Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	150	607
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	9,169	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	1,670	5,807
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	2,533	812
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	791	4,371
Prior	38,955	25,677
Revolving Loans Amortized Cost Basis	497	221
Revolving Loan Converted to Term	0	0
Total	53,765	37,495
Doubtful | Commercial
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	0	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loan Converted to Term	0	0
Total	0	0
Doubtful | Commercial Real Estate
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	0
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	0	0
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	0	0
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loan Converted to Term	0	0
Total	0	0
Performing | Consumer
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	405,099	482,530
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	355,217	284,831
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	195,799	154,819
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	93,708	88,165
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	44,206	38,852
Prior	15,252	12,032
Revolving Loans Amortized Cost Basis	0	504
Revolving Loan Converted to Term	0	0
Total	1,109,281	1,061,733
Performing | Residential
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	161,878	210,565
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	231,365	198,195
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	192,588	128,372
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	116,451	82,965
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	73,875	74,281
Prior	296,935	259,787
Revolving Loans Amortized Cost Basis	122,573	111,563
Revolving Loan Converted to Term	0	0
Total	1,195,665	1,065,728
Nonperforming | Consumer
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	208	758
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	783	1,468
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	551	607
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	210	325
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	81	157
Prior	85	87
Revolving Loans Amortized Cost Basis	468	0
Revolving Loan Converted to Term	0	0
Total	2,386	3,402
Nonperforming | Residential
Total Loans
Financing receivable, excluding accrued interest, year one, originated, current fiscal year	0	0
Financing receivable, excluding accrued interest, year two, originated, fiscal year before current fiscal year	0	255
Financing receivable, excluding accrued interest, year three, originated, two years before current fiscal year	444	939
Financing receivable, excluding accrued interest, year four, originated, three years before current fiscal year	666	597
Financing receivable, excluding accrued interest, year five, originated, four years before current fiscal year	127	520
Prior	2,268	2,311
Revolving Loans Amortized Cost Basis	360	407
Revolving Loan Converted to Term	0	0
Total	$ 3,865	$ 5,029