Loans and Allowance for Credit Losses - Schedule of Portfolio Quality Indicators (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Total gross loans
Total	$ 496,537		$ 496,537		$ 490,971
Current period gross charge-offs
Total	55	$ 59	247	$ 243
Commercial and Industrial
Total gross loans
Year 1	30,174		30,174		42,028
Year 2	37,616		37,616		48,851
Year 3	43,120		43,120		44,800
Year 4	39,531		39,531		45,194
Year 5	40,608		40,608		41,560
Prior	115,031		115,031		84,556
Revolving Loans Amortized Cost Basis	92,383		92,383		83,479
Total	398,463		398,463		390,468
Current period gross charge-offs
Current period gross charge-offs, year 1					144
Current period gross charge-offs, year 2					72
Prior					17
Total					233
Commercial and Industrial | Performing
Total gross loans
Year 1					14,099
Year 2					11,896
Year 3					17,710
Year 4					15,523
Year 5					17,676
Prior					22,900
Revolving Loans Amortized Cost Basis					376
Total					100,180
Commercial and Industrial | Nonperforming
Total gross loans
Year 2					22
Year 4					17
Year 5					15
Prior					269
Total					323
Commercial and Industrial
Total gross loans
Year 1	12,682		12,682		22,474
Year 2	18,153		18,153		17,993
Year 3	13,881		13,881		11,513
Year 4	9,302		9,302		8,082
Year 5	5,024		5,024		10,099
Prior	15,414		15,414		8,480
Revolving Loans Amortized Cost Basis	20,930		20,930		20,154
Total	95,386		95,386		98,795
Current period gross charge-offs
Current period gross charge-offs, year 2					127
Current period gross charge-offs, year 3			39
Revolving Loans Amortized Cost Basis			71
Total			110	75	127
Commercial Real Estate
Total gross loans
Year 1	17,492		17,492		19,554
Year 2	19,463		19,463		30,858
Year 3	29,239		29,239		33,287
Year 4	30,229		30,229		37,112
Year 5	35,584		35,584		31,461
Prior	99,617		99,617		76,076
Revolving Loans Amortized Cost Basis	71,453		71,453		63,325
Total	303,077		303,077		291,673
Current period gross charge-offs
Current period gross charge-offs, year 2					127
Total					127
Installment
Current period gross charge-offs
Total	55	49	133	151
Residential Real Estate and Consumer, Total
Total gross loans
Year 1	9,050		9,050		14,099
Year 2	11,948		11,948		11,918
Year 3	9,683		9,683		17,710
Year 4	15,655		15,655		15,540
Year 5	14,297		14,297		17,691
Prior	37,079		37,079		23,169
Revolving Loans Amortized Cost Basis	362		362		376
Total	98,074		98,074		100,503
Current period gross charge-offs
Current period gross charge-offs, year 1			98
Current period gross charge-offs, year 2			7
Current period gross charge-offs, year 3			27
Current period gross charge-offs, year 4			1
Prior			4
Total			137
Residential Real Estate and Consumer, Total | Performing
Total gross loans
Year 1	8,785		8,785
Year 2	11,926		11,926
Year 3	9,683		9,683
Year 4	15,655		15,655
Year 5	14,279		14,279
Prior	36,783		36,783
Revolving Loans Amortized Cost Basis	362		362
Total	97,473		97,473
Residential Real Estate and Consumer, Total | Nonperforming
Total gross loans
Year 1	265		265
Year 2	22		22
Year 5	18		18
Prior	296		296
Total	601		601
Residential
Total gross loans
Year 1	7,786		7,786		9,480
Year 2	8,572		8,572		10,491
Year 3	8,763		8,763		16,912
Year 4	15,160		15,160		15,191
Year 5	14,057		14,057		17,401
Prior	36,322		36,322		22,262
Total	90,660		90,660		91,737
Current period gross charge-offs
Prior			4		17
Total		$ 10	4	$ 17	17
Residential | Performing
Total gross loans
Year 1	7,521		7,521		9,480
Year 2	8,550		8,550		10,469
Year 3	8,763		8,763		16,912
Year 4	15,160		15,160		15,174
Year 5	14,039		14,039		17,401
Prior	36,038		36,038		21,993
Total	90,071		90,071		91,429
Residential | Nonperforming
Total gross loans
Year 1	265		265
Year 2	22		22		22
Year 4					17
Year 5	18		18
Prior	284		284		269
Total	589		589		308
Consumer
Total gross loans
Year 1	1,264		1,264		4,619
Year 2	3,376		3,376		1,427
Year 3	920		920		798
Year 4	495		495		349
Year 5	240		240		290
Prior	757		757		907
Revolving Loans Amortized Cost Basis	362		362		376
Total	7,414		7,414		8,766
Current period gross charge-offs
Current period gross charge-offs, year 1			98		144
Current period gross charge-offs, year 2			7		72
Current period gross charge-offs, year 3			27
Current period gross charge-offs, year 4			1
Total			133		216
Consumer | Performing
Total gross loans
Year 1	1,264		1,264		4,619
Year 2	3,376		3,376		1,427
Year 3	920		920		798
Year 4	495		495		349
Year 5	240		240		275
Prior	745		745		907
Revolving Loans Amortized Cost Basis	362		362		376
Total	7,402		7,402		8,751
Consumer | Nonperforming
Total gross loans
Year 5					15
Prior	12		12
Total	12		12		15
Pass | Commercial and Industrial
Total gross loans
Year 1	30,174		30,174		42,028
Year 2	37,616		37,616		48,851
Year 3	43,120		43,120		44,459
Year 4	39,196		39,196		44,952
Year 5	40,234		40,234		41,560
Prior	107,428		107,428		76,574
Revolving Loans Amortized Cost Basis	84,658		84,658		76,164
Total	382,426		382,426		374,588
Pass | Commercial and Industrial
Total gross loans
Year 1	12,682		12,682		22,474
Year 2	18,153		18,153		17,993
Year 3	13,881		13,881		11,487
Year 4	9,276		9,276		8,082
Year 5	5,024		5,024		10,099
Prior	15,216		15,216		8,295
Revolving Loans Amortized Cost Basis	19,630		19,630		19,068
Total	93,862		93,862		97,498
Pass | Commercial Real Estate
Total gross loans
Year 1	17,492		17,492		19,554
Year 2	19,463		19,463		30,858
Year 3	29,239		29,239		32,972
Year 4	29,920		29,920		36,870
Year 5	35,210		35,210		31,461
Prior	92,212		92,212		68,279
Revolving Loans Amortized Cost Basis	65,028		65,028		57,096
Total	288,564		288,564		277,090
Special Mention | Commercial and Industrial
Total gross loans
Year 3					341
Year 4	309		309		242
Prior	6,287		6,287		7,966
Revolving Loans Amortized Cost Basis	7,472		7,472		7,315
Total	14,068		14,068		15,864
Special Mention | Commercial and Industrial
Total gross loans
Year 3					26
Prior					185
Revolving Loans Amortized Cost Basis	1,047		1,047		1,086
Total	1,047		1,047		1,297
Special Mention | Commercial Real Estate
Total gross loans
Year 3					315
Year 4	309		309		242
Prior	6,287		6,287		7,781
Revolving Loans Amortized Cost Basis	6,425		6,425		6,229
Total	13,021		13,021		14,567
Substandard | Commercial and Industrial
Total gross loans
Year 4	26		26
Year 5	374		374
Prior	1,316		1,316		16
Revolving Loans Amortized Cost Basis	253		253
Total	1,969		1,969		16
Substandard | Commercial and Industrial
Total gross loans
Year 4	26		26
Prior	198		198
Revolving Loans Amortized Cost Basis	253		253
Total	477		477
Substandard | Commercial Real Estate
Total gross loans
Year 5	374		374
Prior	1,118		1,118		16
Total	$ 1,492		$ 1,492		$ 16