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Allowance for Credit Losses - Credit Quality Risk Ratings by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	$ 2,079,860	$ 1,857,975	$ 2,079,860	$ 1,857,975	$ 1,914,674
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
Charge offs	86	260	208	619	758
Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	238,987		238,987
2022	467,901		467,901
2021	404,578		404,578
2020	244,494		244,494
2019	124,553		124,553
Prior	395,244		395,244
Revolving Loans Amortized Cost Basis	180,900		180,900
Revolving Loans Converted to Term	23,203		23,203
Total	2,079,860		2,079,860
Commercial | Real estate owner occupied
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	299,943	251,410	299,943	251,410	256,623
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			40
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs			40
Commercial | Real estate owner occupied | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	43,022		43,022
2022	75,590		75,590
2021	41,851		41,851
2020	28,387		28,387
2019	35,696		35,696
Prior	65,064		65,064
Revolving Loans Amortized Cost Basis	9,355		9,355
Revolving Loans Converted to Term	175		175
Total	299,140		299,140
Commercial | Real estate owner occupied | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Real estate owner occupied | Substandard (risk rating 7)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	283		283
2022	0		0
2021	0		0
2020	0		0
2019	503		503
Prior	17		17
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	803		803
Commercial | Real estate owner occupied | Doubtful (risk rating 8)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Real estate owner occupied | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	43,305		43,305
2022	75,590		75,590
2021	41,851		41,851
2020	28,387		28,387
2019	36,199		36,199
Prior	65,081		65,081
Revolving Loans Amortized Cost Basis	9,355		9,355
Revolving Loans Converted to Term	175		175
Total	299,943		299,943
Commercial | Real estate non-owner occupied
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	397,024	315,514	397,024	315,514	363,660
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	0		0
Commercial | Real estate non-owner occupied | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	27,875		27,875
2022	71,474		71,474
2021	130,132		130,132
2020	49,160		49,160
2019	27,670		27,670
Prior	85,559		85,559
Revolving Loans Amortized Cost Basis	5,092		5,092
Revolving Loans Converted to Term	0		0
Total	396,962		396,962
Commercial | Real estate non-owner occupied | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Real estate non-owner occupied | Substandard (risk rating 7)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	62		62
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	62		62
Commercial | Real estate non-owner occupied | Doubtful (risk rating 8)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Real estate non-owner occupied | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	27,875		27,875
2022	71,474		71,474
2021	130,132		130,132
2020	49,160		49,160
2019	27,670		27,670
Prior	85,621		85,621
Revolving Loans Amortized Cost Basis	5,092		5,092
Revolving Loans Converted to Term	0		0
Total	397,024		397,024
Commercial | Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	72,424	129,036	72,424	129,036	93,907
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	0	0	0	0	0
Commercial | Construction | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	16,892		16,892
2022	41,852		41,852
2021	8,506		8,506
2020	1,665		1,665
2019	1,039		1,039
Prior	2,470		2,470
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	72,424		72,424
Commercial | Construction | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Construction | Substandard (risk rating 7)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Construction | Doubtful (risk rating 8)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Construction | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	16,892		16,892
2022	41,852		41,852
2021	8,506		8,506
2020	1,665		1,665
2019	1,039		1,039
Prior	2,470		2,470
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	72,424		72,424
Commercial | C&I
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	350,596	310,110	350,596	310,110	319,359
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			16
Prior			0
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	16		16
Commercial | C&I | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	43,648		43,648
2022	66,873		66,873
2021	53,712		53,712
2020	37,052		37,052
2019	6,526		6,526
Prior	38,003		38,003
Revolving Loans Amortized Cost Basis	90,748		90,748
Revolving Loans Converted to Term	11,937		11,937
Total	348,499		348,499
Commercial | C&I | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	129		129
2021	268		268
2020	0		0
2019	0		0
Prior	8		8
Revolving Loans Amortized Cost Basis	400		400
Revolving Loans Converted to Term	0		0
Total	805		805
Commercial | C&I | Substandard (risk rating 7)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	94		94
2022	363		363
2021	35		35
2020	0		0
2019	188		188
Prior	545		545
Revolving Loans Amortized Cost Basis	67		67
Revolving Loans Converted to Term	0		0
Total	1,292		1,292
Commercial | C&I | Doubtful (risk rating 8)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | C&I | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	43,742		43,742
2022	67,365		67,365
2021	54,015		54,015
2020	37,052		37,052
2019	6,714		6,714
Prior	38,556		38,556
Revolving Loans Amortized Cost Basis	91,215		91,215
Revolving Loans Converted to Term	11,937		11,937
Total	350,596		350,596
Commercial | Multifamily
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	91,041	71,784	91,041	71,784	79,057
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	0		0
Commercial | Multifamily | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	8,435		8,435
2022	32,082		32,082
2021	18,172		18,172
2020	16,103		16,103
2019	5,553		5,553
Prior	8,796		8,796
Revolving Loans Amortized Cost Basis	329		329
Revolving Loans Converted to Term	207		207
Total	89,677		89,677
Commercial | Multifamily | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	1,364		1,364
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	1,364		1,364
Commercial | Multifamily | Substandard (risk rating 7)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Multifamily | Doubtful (risk rating 8)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Commercial | Multifamily | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	8,435		8,435
2022	32,082		32,082
2021	19,536		19,536
2020	16,103		16,103
2019	5,553		5,553
Prior	8,796		8,796
Revolving Loans Amortized Cost Basis	329		329
Revolving Loans Converted to Term	207		207
Total	91,041		91,041
Municipal
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	58,447	48,702	58,447	48,702	40,619
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	0	0	0	0	0
Municipal | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	24,527		24,527
2022	6,239		6,239
2021	4,121		4,121
2020	10,226		10,226
2019	5,270		5,270
Prior	8,064		8,064
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	58,447		58,447
Municipal | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Municipal | Substandard (risk rating 7)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Municipal | Doubtful (risk rating 8)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Municipal | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	24,527		24,527
2022	6,239		6,239
2021	4,121		4,121
2020	10,226		10,226
2019	5,270		5,270
Prior	8,064		8,064
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	58,447		58,447
Residential | Construction
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	28,986	41,631	28,986	41,631	49,907
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	0	0	0	0	0
Residential | Construction | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	15,966		15,966
2022	11,715		11,715
2021	0		0
2020	1,305		1,305
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	28,986		28,986
Residential | Construction | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Residential | Construction | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	15,966		15,966
2022	11,715		11,715
2021	0		0
2020	1,305		1,305
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	28,986		28,986
Residential | Term
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	660,049	581,066	660,049	581,066	597,404
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	0	0	0	0	8
Residential | Term | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	47,019		47,019
2022	149,470		149,470
2021	143,048		143,048
2020	97,350		97,350
2019	40,621		40,621
Prior	179,788		179,788
Revolving Loans Amortized Cost Basis	1,301		1,301
Revolving Loans Converted to Term	132		132
Total	658,729		658,729
Residential | Term | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	304		304
2021	0		0
2020	81		81
2019	340		340
Prior	595		595
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	1,320		1,320
Residential | Term | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	47,019		47,019
2022	149,774		149,774
2021	143,048		143,048
2020	97,431		97,431
2019	40,961		40,961
Prior	180,383		180,383
Revolving Loans Amortized Cost Basis	1,301		1,301
Revolving Loans Converted to Term	132		132
Total	660,049		660,049
Home Equity
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	101,980	87,903	101,980	87,903	93,075
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	0	0	0	29	29
Home Equity | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	8,154		8,154
2022	9,472		9,472
2021	2,073		2,073
2020	1,214		1,214
2019	609		609
Prior	1,754		1,754
Revolving Loans Amortized Cost Basis	67,639		67,639
Revolving Loans Converted to Term	10,575		10,575
Total	101,490		101,490
Home Equity | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	115		115
Revolving Loans Amortized Cost Basis	198		198
Revolving Loans Converted to Term	177		177
Total	490		490
Home Equity | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	8,154		8,154
2022	9,472		9,472
2021	2,073		2,073
2020	1,214		1,214
2019	609		609
Prior	1,869		1,869
Revolving Loans Amortized Cost Basis	67,837		67,837
Revolving Loans Converted to Term	10,752		10,752
Total	101,980		101,980
Consumer
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	19,370	20,819	19,370	20,819	21,063
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) [Abstract]
2023			5
2022			41
2021			30
2020			30
2019			7
Prior			39
Revolving Loans Amortized Cost Basis			0
Revolving Loans Converted to Term			0
Charge offs	69	$ 31	152	$ 318	$ 412
Consumer | Pass (risk rating 1-5)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	3,072		3,072
2022	2,338		2,338
2021	1,296		1,296
2020	1,951		1,951
2019	538		538
Prior	4,404		4,404
Revolving Loans Amortized Cost Basis	5,771		5,771
Revolving Loans Converted to Term	0		0
Total	19,370		19,370
Consumer | Special Mention (risk rating 6)
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Revolving Loans Converted to Term	0		0
Total	0		0
Consumer | Total loans
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
2023	3,072		3,072
2022	2,338		2,338
2021	1,296		1,296
2020	1,951		1,951
2019	538		538
Prior	4,404		4,404
Revolving Loans Amortized Cost Basis	5,771		5,771
Revolving Loans Converted to Term	0		0
Total	$ 19,370		$ 19,370

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