Loans, Credit Risk Profile Based on Rating Category and Payment Activity and on Performing and Nonperforming Status, Segregated by Class (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
Total	$ 3,777,359		$ 3,709,290
Current Period Gross Charge-Offs [Abstract]
Total	1,765	$ 1,320	5,346
Consumer mortgage loans secured by real estate properties for which formal foreclosure proceedings are in process	3,200		3,300
Commercial [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	94,442		542,228
2022/2021	498,820		407,322
2021/2020	397,474		197,470
2020/2019	191,967		160,246
2019/2018	145,687		78,649
Prior	338,372		280,907
Revolving Loans	210,338		202,036
Total	1,877,100		1,868,858
Current Period Gross Charge-Offs [Abstract]
2023	156
2022	20
2021	0
2020	0
2019	0
Prior	11
Revolving loan	0
Total	187
Commercial [Member] | Pass [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	91,279		519,154
2022/2021	475,317		378,826
2021/2020	362,300		171,938
2020/2019	168,276		149,565
2019/2018	129,814		70,102
Prior	285,383		233,022
Revolving Loans	201,985		192,516
Total	$ 1,714,354		1,715,123
Commercial [Member] | Pass [Member] | Minimum [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
Review period for loans	12 months
Commercial [Member] | Pass [Member] | Maximum [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
Review period for loans	18 months
Commercial [Member] | Watch [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	$ 1,842		14,348
2022/2021	12,456		16,052
2021/2020	15,965		17,892
2020/2019	17,317		6,696
2019/2018	11,926		4,257
Prior	33,558		31,372
Revolving Loans	7,513		8,484
Total	100,577		99,101
Commercial [Member] | OAEM [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		49
2022/2021	2,565		0
2021/2020	7,038		0
2020/2019	0		39
2019/2018	181		0
Prior	2,343		2,046
Revolving Loans	94		59
Total	12,221		2,193
Commercial [Member] | Substandard [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	1,321		8,211
2022/2021	8,016		12,315
2021/2020	12,042		7,640
2020/2019	6,374		3,837
2019/2018	3,657		4,290
Prior	16,784		14,162
Revolving Loans	746		977
Total	48,940		51,432
Commercial [Member] | Doubtful [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		466
2022/2021	466		129
2021/2020	129		0
2020/2019	0		109
2019/2018	109		0
Prior	304		305
Revolving Loans	0		0
Total	1,008		1,009
Commercial [Member] | Hotel/Motel [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	11,245		153,183
2022/2021	151,909		44,998
2021/2020	44,689		23,265
2020/2019	23,041		57,781
2019/2018	51,303		13,178
Prior	63,144		50,690
Revolving Loans	3,545		545
Total	348,876		343,640
Current Period Gross Charge-Offs [Abstract]
Total	(0)	216	216
Commercial [Member] | Hotel/Motel [Member] | Pass [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	10,397		145,262
2022/2021	144,932		36,002
2021/2020	28,671		17,742
2020/2019	17,556		54,328
2019/2018	47,870		13,178
Prior	47,835		35,179
Revolving Loans	3,545		545
Total	300,806		302,236
Commercial [Member] | Hotel/Motel [Member] | Watch [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	848		7,921
2022/2021	6,977		8,996
2021/2020	8,980		5,523
2020/2019	5,485		3,453
2019/2018	3,433		0
Prior	13,376		13,555
Revolving Loans	0		0
Total	39,099		39,448
Commercial [Member] | Hotel/Motel [Member] | OAEM [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	7,038		0
2020/2019	0		0
2019/2018	0		0
Prior	1,933		1,956
Revolving Loans	0		0
Total	8,971		1,956
Commercial [Member] | Hotel/Motel [Member] | Substandard [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial [Member] | Hotel/Motel [Member] | Doubtful [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial [Member] | Commercial Real Estate Residential [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	35,495		121,482
2022/2021	111,603		116,150
2021/2020	111,626		41,976
2020/2019	39,297		16,700
2019/2018	14,433		16,267
Prior	58,955		45,861
Revolving Loans	13,919		14,478
Total	385,328		372,914
Current Period Gross Charge-Offs [Abstract]
Total	(0)	31	92
Commercial [Member] | Commercial Real Estate Residential [Member] | Pass [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	35,101		119,826
2022/2021	109,784		110,963
2021/2020	106,509		38,423
2020/2019	36,768		15,467
2019/2018	13,441		10,492
Prior	44,088		36,307
Revolving Loans	13,828		14,297
Total	359,519		345,775
Commercial [Member] | Commercial Real Estate Residential [Member] | Watch [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	315		1,474
2022/2021	1,163		898
2021/2020	756		1,675
2020/2019	1,575		848
2019/2018	632		2,136
Prior	8,446		7,015
Revolving Loans	63		152
Total	12,950		14,198
Commercial [Member] | Commercial Real Estate Residential [Member] | OAEM [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		39
2019/2018	181		0
Prior	326		0
Revolving Loans	28		29
Total	535		68
Commercial [Member] | Commercial Real Estate Residential [Member] | Substandard [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	79		182
2022/2021	656		4,289
2021/2020	4,361		1,878
2020/2019	954		346
2019/2018	179		3,639
Prior	6,095		2,539
Revolving Loans	0		0
Total	12,324		12,873
Commercial [Member] | Commercial Real Estate Residential [Member] | Doubtful [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial [Member] | Commercial Real Estate Nonresidential [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	24,576		180,509
2022/2021	163,901		179,613
2021/2020	178,289		95,899
2020/2019	96,149		76,161
2019/2018	72,290		46,569
Prior	190,457		158,857
Revolving Loans	24,836		24,741
Total	750,498		762,349
Current Period Gross Charge-Offs [Abstract]
Total	(0)	(0)	46
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Pass [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	23,413		175,220
2022/2021	156,272		171,311
2021/2020	170,048		80,932
2020/2019	81,516		70,848
2019/2018	61,444		44,099
Prior	169,219		137,575
Revolving Loans	23,175		23,166
Total	685,087		703,151
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Watch [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	307		3,331
2022/2021	3,139		5,765
2021/2020	5,703		10,090
2020/2019	10,036		2,178
2019/2018	7,684		1,962
Prior	10,851		10,022
Revolving Loans	1,661		1,550
Total	39,381		34,898
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | OAEM [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		19
2022/2021	2,535		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	84		90
Revolving Loans	0		0
Total	2,619		109
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Substandard [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	856		1,939
2022/2021	1,955		2,537
2021/2020	2,538		4,877
2020/2019	4,597		3,135
2019/2018	3,162		508
Prior	9,999		10,865
Revolving Loans	0		25
Total	23,107		23,886
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Doubtful [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	304		305
Revolving Loans	0		0
Total	304		305
Commercial [Member] | Dealer Floorplans [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	75,443		77,533
Total	75,443		77,533
Current Period Gross Charge-Offs [Abstract]
Total	(0)	(0)	(0)
Commercial [Member] | Dealer Floorplans [Member] | Pass [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	75,443		77,153
Total	75,443		77,153
Commercial [Member] | Dealer Floorplans [Member] | Watch [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	0		380
Total	0		380
Commercial [Member] | Dealer Floorplans [Member] | OAEM [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial [Member] | Dealer Floorplans [Member] | Substandard [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial [Member] | Dealer Floorplans [Member] | Doubtful [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	0		0
Total	0		0
Commercial [Member] | Commercial Other [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	23,126		87,054
2022/2021	71,407		66,561
2021/2020	62,870		36,330
2020/2019	33,480		9,604
2019/2018	7,661		2,635
Prior	25,816		25,499
Revolving Loans	92,595		84,739
Total	316,955		312,422
Current Period Gross Charge-Offs [Abstract]
2023	156
2022	20
2021	0
2020	0
2019	0
Prior	11
Revolving loan	0
Total	187
Commercial [Member] | Commercial Other [Member] | Pass [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	22,368		78,846
2022/2021	64,329		60,550
2021/2020	57,072		34,841
2020/2019	32,436		8,922
2019/2018	7,059		2,333
Prior	24,241		23,961
Revolving Loans	85,994		77,355
Total	293,499		286,808
Commercial [Member] | Commercial Other [Member] | Watch [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	372		1,622
2022/2021	1,177		393
2021/2020	526		604
2020/2019	221		217
2019/2018	177		159
Prior	885		780
Revolving Loans	5,789		6,402
Total	9,147		10,177
Commercial [Member] | Commercial Other [Member] | OAEM [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		30
2022/2021	30		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	66		30
Total	96		60
Commercial [Member] | Commercial Other [Member] | Substandard [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	386		6,090
2022/2021	5,405		5,489
2021/2020	5,143		885
2020/2019	823		356
2019/2018	316		143
Prior	690		758
Revolving Loans	746		952
Total	13,509		14,673
Commercial [Member] | Commercial Other [Member] | Doubtful [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		466
2022/2021	466		129
2021/2020	129		0
2020/2019	0		109
2019/2018	109		0
Prior	0		0
Revolving Loans	0		0
Total	704		704
Residential [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	34,180		176,736
2022/2021	182,233		177,751
2021/2020	173,379		132,893
2020/2019	129,393		63,206
2019/2018	62,242		30,895
Prior	275,267		254,212
Revolving Loans	113,837		109,843
Total	970,531		945,536
Current Period Gross Charge-Offs [Abstract]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	40
Revolving loan	0
Total	40
Residential [Member] | Performing [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	34,180		176,736
2022/2021	182,233		177,469
2021/2020	173,212		132,795
2020/2019	129,393		62,415
2019/2018	61,486		30,473
Prior	268,167		246,305
Revolving Loans	113,595		109,567
Total	962,266		935,760
Residential [Member] | Nonperforming [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		282
2021/2020	167		98
2020/2019	0		791
2019/2018	756		422
Prior	7,100		7,907
Revolving Loans	242		276
Total	8,265		9,776
Residential [Member] | Real Estate Mortgage [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	34,180		176,736
2022/2021	182,233		177,751
2021/2020	173,379		132,893
2020/2019	129,393		63,206
2019/2018	62,242		30,895
Prior	265,008		243,515
Revolving Loans	0		0
Total	846,435		824,996
Current Period Gross Charge-Offs [Abstract]
2023	0
2022	0
2021	0
2020	0
2019	0
Prior	40
Revolving loan	0
Total	40
Residential [Member] | Real Estate Mortgage [Member] | Performing [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	34,180		176,736
2022/2021	182,233		177,469
2021/2020	173,212		132,795
2020/2019	129,393		62,415
2019/2018	61,486		30,473
Prior	258,399		236,110
Revolving Loans	0		0
Total	838,903		815,998
Residential [Member] | Real Estate Mortgage [Member] | Nonperforming [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		282
2021/2020	167		98
2020/2019	0		791
2019/2018	756		422
Prior	6,609		7,405
Revolving Loans	0		0
Total	7,532		8,998
Residential [Member] | Home Equity Lines [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	10,259		10,697
Revolving Loans	113,837		109,843
Total	124,096		120,540
Current Period Gross Charge-Offs [Abstract]
Total	(0)	19	37
Residential [Member] | Home Equity Lines [Member] | Performing [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	9,768		10,195
Revolving Loans	113,595		109,567
Total	123,363		119,762
Residential [Member] | Home Equity Lines [Member] | Nonperforming [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		0
2022/2021	0		0
2021/2020	0		0
2020/2019	0		0
2019/2018	0		0
Prior	491		502
Revolving Loans	242		276
Total	733		778
Consumer [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	130,859		433,408
2022/2021	392,006		210,789
2021/2020	189,704		140,289
2020/2019	124,137		56,944
2019/2018	49,296		33,014
Prior	43,726		20,452
Revolving Loans	0		0
Total	929,728		894,896
Current Period Gross Charge-Offs [Abstract]
2023	0
2022	605
2021	651
2020	182
2019	56
Prior	44
Revolving loan	0
Total	1,538
Consumer [Member] | Performing [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	130,859		433,318
2022/2021	391,962		210,527
2021/2020	189,636		140,188
2020/2019	124,116		56,914
2019/2018	49,289		33,013
Prior	43,706		20,430
Revolving Loans	0		0
Total	929,568		894,390
Consumer [Member] | Nonperforming [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		90
2022/2021	44		262
2021/2020	68		101
2020/2019	21		30
2019/2018	7		1
Prior	20		22
Revolving Loans	0		0
Total	160		506
Consumer [Member] | Consumer Direct [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	18,047		62,264
2022/2021	53,605		42,025
2021/2020	37,333		23,926
2020/2019	21,420		11,166
2019/2018	9,991		6,766
Prior	16,762		11,357
Revolving Loans	0		0
Total	157,158		157,504
Current Period Gross Charge-Offs [Abstract]
2023	0
2022	80
2021	34
2020	29
2019	12
Prior	1
Revolving loan	0
Total	156	170	609
Consumer [Member] | Consumer Direct [Member] | Performing [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	18,047		62,239
2022/2021	53,577		42,014
2021/2020	37,333		23,921
2020/2019	21,420		11,166
2019/2018	9,991		6,766
Prior	16,762		11,357
Revolving Loans	0		0
Total	157,130		157,463
Consumer [Member] | Consumer Direct [Member] | Nonperforming [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		25
2022/2021	28		11
2021/2020	0		5
2020/2019	0		0
2019/2018	0		0
Prior	0		0
Revolving Loans	0		0
Total	28		41
Consumer [Member] | Consumer Indirect [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	112,812		371,144
2022/2021	338,401		168,764
2021/2020	152,371		116,363
2020/2019	102,717		45,778
2019/2018	39,305		26,248
Prior	26,964		9,095
Revolving Loans	0		0
Total	772,570		737,392
Current Period Gross Charge-Offs [Abstract]
2023	0
2022	525
2021	617
2020	153
2019	44
Prior	43
Revolving loan	0
Total	1,382	$ 634	3,041
Consumer [Member] | Consumer Indirect [Member] | Performing [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	112,812		371,079
2022/2021	338,385		168,513
2021/2020	152,303		116,267
2020/2019	102,696		45,748
2019/2018	39,298		26,247
Prior	26,944		9,073
Revolving Loans	0		0
Total	772,438		736,927
Consumer [Member] | Consumer Indirect [Member] | Nonperforming [Member]
Credit Risk Profile of Loan Portfolio Segregated by Class of Loans and Origination Year [Abstract]
2023/2022	0		65
2022/2021	16		251
2021/2020	68		96
2020/2019	21		30
2019/2018	7		1
Prior	20		22
Revolving Loans	0		0
Total	$ 132		$ 465