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Loans and Allowance for Credit Losses - Schedule of Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 120,809		$ 120,809
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	302,633		302,633
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	251,864		251,864
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	121,821		121,821
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	115,020		115,020
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	529,661		529,661
Financing Receivable, Revolving	132,009		132,009
Financing receivable, before allowance for credit loss	1,573,817	$ 1,509,792	1,573,817	$ 1,509,792	$ 1,538,610
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			5
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			62
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			32
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			7
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			16
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			77
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	82	38	199	120
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	120,029		120,029
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	296,884		296,884
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	249,425		249,425
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	119,234		119,234
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	108,659		108,659
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	502,719		502,719
Financing Receivable, Revolving	128,624		128,624
Financing receivable, before allowance for credit loss	1,525,574		1,525,574		1,489,259
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	772		772
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	5,730		5,730
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,439		2,439
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	2,567		2,567
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	5,804		5,804
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	19,951		19,951
Financing Receivable, Revolving	2,855		2,855
Financing receivable, before allowance for credit loss	40,118		40,118		41,908
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	8		8
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	19		19
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	20		20
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	557		557
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	6,991		6,991
Financing Receivable, Revolving	530		530
Financing receivable, before allowance for credit loss	8,125		8,125		7,443
Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	120,809		120,809
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	302,633		302,633
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	251,864		251,864
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	121,821		121,821
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	114,696		114,696
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	526,830		526,830
Financing Receivable, Revolving	131,505		131,505
Financing receivable, before allowance for credit loss	1,570,158		1,570,158		1,534,753
Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	324		324
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,831		2,831
Financing Receivable, Revolving	504		504
Financing receivable, before allowance for credit loss	3,659		3,659		3,857
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	3,187		3,187
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	27,255		27,255
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,524		39,524
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	17,399		17,399
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,136		15,136
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	27,196		27,196
Financing Receivable, Revolving	28,840		28,840
Financing receivable, before allowance for credit loss	158,537	177,115	158,537	177,115	178,762
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			29
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	34	29	97
Commercial and industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	3,061		3,061
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	26,848		26,848
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,180		39,180
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	16,865		16,865
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	14,949		14,949
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	25,763		25,763
Financing Receivable, Revolving	26,949		26,949
Financing receivable, before allowance for credit loss	153,615		153,615		173,437
Commercial and industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	118		118
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	388		388
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	344		344
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	514		514
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	174		174
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	613		613
Financing Receivable, Revolving	1,387		1,387
Financing receivable, before allowance for credit loss	3,538		3,538		4,035
Commercial and industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	8		8
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	19		19
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	20		20
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	13		13
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	820		820
Financing Receivable, Revolving	504		504
Financing receivable, before allowance for credit loss	1,384		1,384		1,290
Commercial and industrial | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Commercial and industrial | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Commercial and industrial | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	3,187		3,187
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	27,255		27,255
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,524		39,524
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	17,399		17,399
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,136		15,136
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	26,956		26,956
Financing Receivable, Revolving	28,336		28,336
Financing receivable, before allowance for credit loss	157,793		157,793		177,981
Commercial and industrial | Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	240		240
Financing Receivable, Revolving	504		504
Financing receivable, before allowance for credit loss	744		744		781
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	72,528		72,528
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	152,576		152,576
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	145,888		145,888
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	69,291		69,291
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	77,693		77,693
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	340,852		340,852
Financing Receivable, Revolving	14,959		14,959
Financing receivable, before allowance for credit loss	873,787	818,117	873,787	818,117	821,805
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Commercial real estate | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	72,354		72,354
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	147,795		147,795
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	144,506		144,506
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	67,743		67,743
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	72,227		72,227
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	321,050		321,050
Financing Receivable, Revolving	14,273		14,273
Financing receivable, before allowance for credit loss	839,948		839,948		786,711
Commercial real estate | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	174		174
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,781		4,781
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,382		1,382
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,548		1,548
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4,922		4,922
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	15,107		15,107
Financing Receivable, Revolving	686		686
Financing receivable, before allowance for credit loss	28,600		28,600		29,540
Commercial real estate | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	544		544
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,695		4,695
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	5,239		5,239		5,554
Commercial real estate | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Commercial real estate | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Commercial real estate | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	72,528		72,528
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	152,576		152,576
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	145,888		145,888
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	69,291		69,291
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	77,369		77,369
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	339,575		339,575
Financing Receivable, Revolving	14,959		14,959
Financing receivable, before allowance for credit loss	872,186		872,186		819,932
Commercial real estate | Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	324		324
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,277		1,277
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	1,601		1,601		1,873
Commercial real estate construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,045		9,045
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	44,246		44,246
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,420		7,420
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,109		1,109
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	342		342
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,538		4,538
Financing Receivable, Revolving	7,251		7,251
Financing receivable, before allowance for credit loss	73,951	69,120	73,951	69,120	80,470
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Commercial real estate construction | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,045		9,045
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	43,769		43,769
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,420		7,420
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,016		1,016
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	342		342
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,781		3,781
Financing Receivable, Revolving	7,251		7,251
Financing receivable, before allowance for credit loss	72,624		72,624		78,652
Commercial real estate construction | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	477		477
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	93		93
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	757		757
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	1,327		1,327		1,818
Commercial real estate construction | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Commercial real estate construction | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Commercial real estate construction | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Commercial real estate construction | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,045		9,045
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	44,246		44,246
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,420		7,420
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,109		1,109
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	342		342
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,538		4,538
Financing Receivable, Revolving	7,251		7,251
Financing receivable, before allowance for credit loss	73,951		73,951		80,470
Commercial real estate construction | Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	33,721		33,721
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	75,386		75,386
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	58,061		58,061
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	33,282		33,282
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	21,388		21,388
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	150,692		150,692
Financing Receivable, Revolving	289		289
Financing receivable, before allowance for credit loss	372,819	348,475	372,819	348,475	362,098
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	3	0	3
Residential mortgage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	33,241		33,241
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	75,302		75,302
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	57,348		57,348
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	32,870		32,870
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	20,680		20,680
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	146,279		146,279
Financing Receivable, Revolving	289		289
Financing receivable, before allowance for credit loss	366,009		366,009		356,081
Residential mortgage | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	480		480
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	84		84
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	713		713
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	412		412
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	708		708
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,438		3,438
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	5,835		5,835		5,803
Residential mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	975		975
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	975		975		214
Residential mortgage | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Residential mortgage | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Residential mortgage | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	33,721		33,721
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	75,386		75,386
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	58,061		58,061
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	33,282		33,282
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	21,388		21,388
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	149,704		149,704
Financing Receivable, Revolving	289		289
Financing receivable, before allowance for credit loss	371,831		371,831		361,393
Residential mortgage | Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	988		988
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	988		988		705
Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	939		939
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40		40
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	99		99
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	5,052		5,052
Financing Receivable, Revolving	78,889		78,889
Financing receivable, before allowance for credit loss	85,019	83,589	85,019	83,589	84,141
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			0
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Home equity lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	939		939
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40		40
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	99		99
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,515		4,515
Financing Receivable, Revolving	78,107		78,107
Financing receivable, before allowance for credit loss	83,700		83,700		83,044
Home equity lines of credit | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	36		36
Financing Receivable, Revolving	782		782
Financing receivable, before allowance for credit loss	818		818		712
Home equity lines of credit | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	501		501
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	501		501		385
Home equity lines of credit | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Home equity lines of credit | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Home equity lines of credit | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	939		939
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40		40
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	99		99
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,726		4,726
Financing Receivable, Revolving	78,889		78,889
Financing receivable, before allowance for credit loss	84,693		84,693		83,643
Home equity lines of credit | Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	326		326
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	326		326		498
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,389		1,389
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	3,130		3,130
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	971		971
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	740		740
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	362		362
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,331		1,331
Financing Receivable, Revolving	1,781		1,781
Financing receivable, before allowance for credit loss	9,704	13,376	9,704	13,376	11,334
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			5
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			62
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			32
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			7
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			16
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			48
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	82	$ 1	170	$ 20
Consumer | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,389		1,389
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	3,130		3,130
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	971		971
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	740		740
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	362		362
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,331		1,331
Financing Receivable, Revolving	1,755		1,755
Financing receivable, before allowance for credit loss	9,678		9,678		11,334
Consumer | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Consumer | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	26		26
Financing receivable, before allowance for credit loss	26		26		0
Consumer | Doubtful
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Consumer | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Consumer | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,389		1,389
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	3,130		3,130
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	971		971
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	740		740
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	362		362
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,331		1,331
Financing Receivable, Revolving	1,781		1,781
Financing receivable, before allowance for credit loss	9,704		9,704		11,334
Consumer | Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	$ 0		$ 0		$ 0

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