Credit Risk Management and ACL for Loans - Credit Risk Indicators (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Term Loans by Origination Year
Year one	$ 507,211	$ 569,536
Year two	641,103	722,556
Year three	699,817	628,288
Year four	578,656	296,326
Year five	272,433	281,073
Prior	955,109	783,591
Revolving Loans	320,438	277,820
Revolving Loans Converted to Term	8,131	8,441
Total loans	3,982,898	3,567,631
Current period charge-offs
Year one	106	50
Year two	47	248
Year three	1	0
Year four	196	0
Year five	0	67
Prior	268	267
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total	618	632
Commercial real estate owner-occupied
Term Loans by Origination Year
Year one	49,097	82,531
Year two	126,853	84,677
Year three	102,886	88,448
Year four	84,360	52,891
Year five	49,526	51,868
Prior	284,600	256,718
Revolving Loans	7,312	2,169
Revolving Loans Converted to Term	0	0
Total loans	704,634	619,302
Current period charge-offs
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Commercial real estate owner-occupied | Pass
Term Loans by Origination Year
Year one	49,097	82,500
Year two	126,723	83,366
Year three	101,658	88,178
Year four	83,937	52,891
Year five	49,526	51,379
Prior	277,331	242,518
Revolving Loans	7,312	2,169
Revolving Loans Converted to Term	0	0
Total loans	695,584	603,001
Commercial real estate owner-occupied | Special mention
Term Loans by Origination Year
Year one	0	31
Year two	130	0
Year three	0	0
Year four	0	0
Year five	0	489
Prior	6,546	6,971
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total loans	6,676	7,491
Commercial real estate owner-occupied | Substandard
Term Loans by Origination Year
Year one	0	0
Year two	0	1,311
Year three	1,228	270
Year four	423	0
Year five	0	0
Prior	723	7,229
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total loans	2,374	8,810
Commercial real estate non owner-occupied
Term Loans by Origination Year
Year one	154,004	133,179
Year two	141,723	304,022
Year three	307,858	279,194
Year four	287,846	148,730
Year five	147,819	166,645
Prior	522,824	403,147
Revolving Loans	827	9,961
Revolving Loans Converted to Term	300	557
Total loans	1,563,201	1,445,435
Current period charge-offs
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Commercial real estate non owner-occupied | Pass
Term Loans by Origination Year
Year one	154,004	133,179
Year two	141,723	288,240
Year three	292,192	278,833
Year four	287,506	148,730
Year five	147,374	165,676
Prior	520,370	398,516
Revolving Loans	827	9,961
Revolving Loans Converted to Term	300	107
Total loans	1,544,296	1,423,242
Commercial real estate non owner-occupied | Special mention
Term Loans by Origination Year
Year one	0	0
Year two	0	15,782
Year three	15,448	0
Year four	0	0
Year five	0	0
Prior	0	2,977
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total loans	15,448	18,759
Commercial real estate non owner-occupied | Substandard
Term Loans by Origination Year
Year one	0	0
Year two	0	0
Year three	218	361
Year four	340	0
Year five	445	969
Prior	2,454	1,654
Revolving Loans	0	0
Revolving Loans Converted to Term	0	450
Total loans	3,457	3,434
Commercial and industrial
Term Loans by Origination Year
Year one	81,891	73,608
Year two	61,014	51,990
Year three	43,039	45,296
Year four	33,227	24,848
Year five	20,528	23,940
Prior	51,238	45,019
Revolving Loans	182,757	159,008
Revolving Loans Converted to Term	6,127	7,040
Total loans	479,821	430,749
Current period charge-offs
Year one	12	15
Year two	44	248
Year three	0	0
Year four	196	0
Year five	0	67
Prior	267	266
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total	519	596
Commercial and industrial | Pass
Term Loans by Origination Year
Year one	81,891	73,608
Year two	60,997	51,990
Year three	39,791	45,278
Year four	32,536	24,778
Year five	20,325	23,724
Prior	50,476	44,609
Revolving Loans	182,184	156,465
Revolving Loans Converted to Term	5,924	3,402
Total loans	474,124	423,854
Commercial and industrial | Special mention
Term Loans by Origination Year
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	70
Year five	203	215
Prior	258	201
Revolving Loans	270	2,227
Revolving Loans Converted to Term	0	223
Total loans	731	2,936
Commercial and industrial | Substandard
Term Loans by Origination Year
Year one	0	0
Year two	17	0
Year three	3,248	18
Year four	691	0
Year five	0	1
Prior	504	209
Revolving Loans	303	316
Revolving Loans Converted to Term	203	3,415
Total loans	4,966	3,959
Commercial construction
Term Loans by Origination Year
Year one	138,845	192,462
Year two	229,116	172,218
Year three	142,132	143,203
Year four	106,452	22,017
Year five	9,517	17,420
Prior	21,582	10,532
Revolving Loans	32,325	27,261
Revolving Loans Converted to Term	0	0
Total loans	679,969	585,113
Current period charge-offs
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Commercial construction | Pass
Term Loans by Origination Year
Year one	138,845	192,462
Year two	229,116	164,313
Year three	127,493	143,203
Year four	106,452	22,017
Year five	9,517	16,247
Prior	21,582	10,532
Revolving Loans	32,325	27,261
Revolving Loans Converted to Term	0	0
Total loans	665,330	576,035
Commercial construction | Special mention
Term Loans by Origination Year
Year one		0
Year two		7,905
Year three		0
Year four		0
Year five		1,173
Prior		0
Revolving Loans		0
Revolving Loans Converted to Term		0
Total loans		9,078
Commercial construction | Substandard
Term Loans by Origination Year
Year one	0
Year two	0
Year three	14,639
Year four	0
Year five	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	14,639
Residential mortgages
Term Loans by Origination Year
Year one	79,540	82,848
Year two	79,929	107,222
Year three	101,910	70,215
Year four	65,261	46,674
Year five	44,149	20,260
Prior	72,307	65,923
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total loans	443,096	393,142
Current period charge-offs
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Residential mortgages | Pass
Term Loans by Origination Year
Year one	79,540	82,848
Year two	79,929	107,222
Year three	101,910	69,979
Year four	64,219	46,674
Year five	44,149	19,205
Prior	71,188	65,311
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total loans	440,935	391,239
Residential mortgages | Special mention
Term Loans by Origination Year
Year one		0
Year two		0
Year three		0
Year four		0
Year five		0
Prior		109
Revolving Loans		0
Revolving Loans Converted to Term		0
Total loans		109
Residential mortgages | Substandard
Term Loans by Origination Year
Year one	0	0
Year two	0	0
Year three	0	236
Year four	1,042	0
Year five	0	1,055
Prior	1,119	503
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total loans	2,161	1,794
Home equity
Term Loans by Origination Year
Year one	623	1,203
Year two	454	775
Year three	783	561
Year four	528	444
Year five	433	317
Prior	2,116	1,810
Revolving Loans	97,217	79,421
Revolving Loans Converted to Term	1,704	844
Total loans	103,858	85,375
Current period charge-offs
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	0	0
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Home equity | Pass
Term Loans by Origination Year
Year one	623	1,203
Year two	454	775
Year three	783	561
Year four	528	444
Year five	433	317
Prior	2,033	1,738
Revolving Loans	97,217	79,421
Revolving Loans Converted to Term	1,507	636
Total loans	103,578	85,095
Home equity | Substandard
Term Loans by Origination Year
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	83	72
Revolving Loans	0	0
Revolving Loans Converted to Term	197	208
Total loans	280	280
Consumer
Term Loans by Origination Year
Year one	3,211	3,705
Year two	2,014	1,652
Year three	1,209	1,371
Year four	982	722
Year five	461	623
Prior	442	442
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total loans	8,319	8,515
Current period charge-offs
Year one	94	35
Year two	3	0
Year three	1	0
Year four	0	0
Year five	0	0
Prior	1	1
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total	99	36
Consumer | Pass
Term Loans by Origination Year
Year one	3,211	3,705
Year two	2,014	1,652
Year three	1,209	1,371
Year four	982	722
Year five	461	623
Prior	442	442
Revolving Loans	0	0
Revolving Loans Converted to Term	0	0
Total loans	$ 8,319	$ 8,515