Loans, Credit Risk Profile Based on Rating Category and Payment Activity and on Performing and Nonperforming Status, Segregated by Class (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile	$ 3,554,211	$ 3,248,664
Consumer mortgage loans secured by real estate properties for which formal foreclosure proceedings began but have been\ suspended	2,900
Consumer mortgage loans secured by real estate properties for which formal foreclosure proceedings are in process		2,400
Commercial [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	599,119
2019	253,159
2018	200,954
2017	171,851
2016	171,600
Prior	304,879
Revolving Loans	191,965
Total	1,893,527
Loan portfolio based on credit risk profile	1,893,527	1,664,948
Commercial [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	549,796
2019	233,331
2018	168,142
2017	151,432
2016	134,594
Prior	257,363
Revolving Loans	183,151
Total	$ 1,677,809
Loan portfolio based on credit risk profile		1,493,359
Commercial [Member] | Pass [Member] | Minimum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Review period for loans	12 months
Commercial [Member] | Pass [Member] | Maximum [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Review period for loans	18 months
Commercial [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	$ 33,686
2019	8,273
2018	12,009
2017	11,985
2016	24,744
Prior	24,369
Revolving Loans	8,290
Total	123,356
Loan portfolio based on credit risk profile		71,551
Commercial [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	1,946
2019	4,241
2018	15,023
2017	323
2016	496
Prior	3,382
Revolving Loans	239
Total	25,650
Loan portfolio based on credit risk profile		34,283
Commercial [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	13,691
2019	7,314
2018	5,780
2017	8,111
2016	11,766
Prior	19,737
Revolving Loans	285
Total	66,684
Loan portfolio based on credit risk profile		65,663
Commercial [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	28
Revolving Loans	0
Total	28
Loan portfolio based on credit risk profile		92
Commercial [Member] | Hotel/Motel [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	35,458
2019	75,003
2018	40,395
2017	42,866
2016	31,937
Prior	35,040
Revolving Loans	0
Total	260,699
Loan portfolio based on credit risk profile	260,699
Commercial [Member] | Hotel/Motel [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	11,507
2019	70,504
2018	27,453
2017	39,651
2016	6,357
Prior	22,372
Revolving Loans	0
Total	177,844
Commercial [Member] | Hotel/Motel [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	23,951
2019	2,506
2018	3,366
2017	2,102
2016	16,740
Prior	7,422
Total	56,087
Commercial [Member] | Hotel/Motel [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	1,993
2018	9,576
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	11,569
Commercial [Member] | Hotel/Motel [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	1,113
2016	8,840
Prior	5,246
Revolving Loans	0
Total	15,199
Commercial [Member] | Hotel/Motel [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Commercial Real Estate Residential [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	93,339
2019	43,419
2018	33,931
2017	24,570
2016	27,029
Prior	54,988
Revolving Loans	10,652
Total	287,928
Loan portfolio based on credit risk profile	287,928
Commercial [Member] | Commercial Real Estate Residential [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	85,403
2019	39,238
2018	29,179
2017	17,390
2016	21,272
Prior	46,419
Revolving Loans	10,470
Total	249,371
Commercial [Member] | Commercial Real Estate Residential [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	1,714
2019	2,214
2018	2,438
2017	2,962
2016	4,520
Prior	5,306
Revolving Loans	182
Total	19,336
Commercial [Member] | Commercial Real Estate Residential [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	1,921
2019	1,361
2018	323
2017	142
2016	129
Prior	0
Revolving Loans	0
Total	3,876
Commercial [Member] | Commercial Real Estate Residential [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	4,301
2019	606
2018	1,991
2017	4,076
2016	1,108
Prior	3,263
Revolving Loans	0
Total	15,345
Commercial [Member] | Commercial Real Estate Residential [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Commercial Real Estate Nonresidential [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	137,592
2019	107,418
2018	86,299
2017	89,244
2016	105,118
Prior	191,112
Revolving Loans	26,455
Total	743,238
Loan portfolio based on credit risk profile	743,238
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	125,205
2019	97,204
2018	77,685
2017	80,416
2016	100,740
Prior	165,839
Revolving Loans	25,524
Total	672,613
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	5,133
2019	3,175
2018	5,075
2017	6,366
2016	3,020
Prior	11,046
Revolving Loans	601
Total	34,416
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	887
2018	68
2017	0
2016	0
Prior	3,382
Revolving Loans	115
Total	4,452
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	7,254
2019	6,152
2018	3,471
2017	2,462
2016	1,358
Prior	10,817
Revolving Loans	215
Total	31,729
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	28
Revolving Loans	0
Total	28
Commercial [Member] | Dealer Floorplans [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	69,087
Total	69,087
Loan portfolio based on credit risk profile	69,087
Commercial [Member] | Dealer Floorplans [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	68,610
Total	68,610
Commercial [Member] | Dealer Floorplans [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	477
Total	477
Commercial [Member] | Dealer Floorplans [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Dealer Floorplans [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Dealer Floorplans [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Commercial Other [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	80,063
2019	27,319
2018	40,329
2017	15,171
2016	7,516
Prior	23,739
Revolving Loans	85,771
Total	279,908
Loan portfolio based on credit risk profile	279,908	389,683
Commercial [Member] | Commercial Other [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	75,014
2019	26,385
2018	33,825
2017	13,975
2016	6,225
Prior	22,733
Revolving Loans	78,547
Total	256,704
Loan portfolio based on credit risk profile		358,203
Commercial [Member] | Commercial Other [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	2,888
2019	378
2018	1,130
2017	555
2016	464
Prior	595
Revolving Loans	7,030
Total	13,040
Loan portfolio based on credit risk profile		13,618
Commercial [Member] | Commercial Other [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	25
2019	0
2018	5,056
2017	181
2016	367
Prior	0
Revolving Loans	124
Total	5,753
Loan portfolio based on credit risk profile		6,065
Commercial [Member] | Commercial Other [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	2,136
2019	556
2018	318
2017	460
2016	460
Prior	411
Revolving Loans	70
Total	4,411
Loan portfolio based on credit risk profile		11,737
Commercial [Member] | Commercial Other [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Loan portfolio based on credit risk profile		60
Commercial [Member] | Commercial Unsecured SBA PPP [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	252,667
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	252,667
Loan portfolio based on credit risk profile	252,667
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	252,667
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	252,667
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	0
Revolving Loans	0
Total	0
Commercial [Member] | Construction [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		104,809
Commercial [Member] | Construction [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		98,102
Commercial [Member] | Construction [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		3,595
Commercial [Member] | Construction [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		254
Commercial [Member] | Construction [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		2,858
Commercial [Member] | Construction [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		0
Commercial [Member] | Real Estate [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		1,169,975
Commercial [Member] | Real Estate [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		1,036,573
Commercial [Member] | Real Estate [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		54,338
Commercial [Member] | Real Estate [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		27,964
Commercial [Member] | Real Estate [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		51,068
Commercial [Member] | Real Estate [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		32
Commercial [Member] | Equipment Lease [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		481
Commercial [Member] | Equipment Lease [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		481
Commercial [Member] | Equipment Lease [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		0
Commercial [Member] | Equipment Lease [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		0
Commercial [Member] | Equipment Lease [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		0
Commercial [Member] | Equipment Lease [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		0
Residential [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	214,629
2019	119,737
2018	57,115
2017	61,229
2016	48,628
Prior	295,878
Revolving Loans	91,113
Total	888,329
Loan portfolio based on credit risk profile	888,329
Residential [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	214,629
2019	119,301
2018	56,812
2017	60,915
2016	48,276
Prior	287,932
Revolving Loans	90,724
Total	878,589
Residential [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	436
2018	303
2017	314
2016	352
Prior	7,946
Revolving Loans	389
Total	9,740
Residential [Member] | Construction [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		63,350
Residential [Member] | Construction [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		62,716
Residential [Member] | Construction [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		634
Residential [Member] | Real Estate [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	214,629
2019	119,737
2018	57,115
2017	61,229
2016	48,605
Prior	283,244
Revolving Loans	0
Total	784,559
Loan portfolio based on credit risk profile	784,559	733,003
Residential [Member] | Real Estate [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	214,629
2019	119,301
2018	56,812
2017	60,915
2016	48,253
Prior	275,883
Revolving Loans	0
Total	775,793
Loan portfolio based on credit risk profile		721,094
Residential [Member] | Real Estate [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	436
2018	303
2017	314
2016	352
Prior	7,361
Revolving Loans	0
Total	8,766
Loan portfolio based on credit risk profile		11,909
Residential [Member] | Home Equity Lines [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	23
Prior	12,634
Revolving Loans	91,113
Total	103,770
Loan portfolio based on credit risk profile	103,770	111,894
Residential [Member] | Home Equity Lines [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	23
Prior	12,049
Revolving Loans	90,724
Total	102,796
Loan portfolio based on credit risk profile		110,834
Residential [Member] | Home Equity Lines [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	0
2019	0
2018	0
2017	0
2016	0
Prior	585
Revolving Loans	389
Total	974
Loan portfolio based on credit risk profile		1,060
Consumer [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	374,205
2019	168,288
2018	119,061
2017	59,881
2016	30,388
Prior	20,532
Revolving Loans	0
Total	772,355
Loan portfolio based on credit risk profile	772,355
Consumer [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	374,171
2019	168,116
2018	118,943
2017	59,822
2016	30,358
Prior	20,521
Revolving Loans	0
Total	771,931
Consumer [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	34
2019	172
2018	118
2017	59
2016	30
Prior	11
Revolving Loans	0
Total	424
Consumer [Member] | Consumer Direct [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	72,684
2019	33,050
2018	18,461
2017	9,164
2016	6,581
Prior	12,364
Revolving Loans	0
Total	152,304
Loan portfolio based on credit risk profile	152,304	148,051
Consumer [Member] | Consumer Direct [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	72,677
2019	32,993
2018	18,461
2017	9,157
2016	6,581
Prior	12,364
Revolving Loans	0
Total	152,233
Loan portfolio based on credit risk profile		147,954
Consumer [Member] | Consumer Direct [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	7
2019	57
2018	0
2017	7
2016	0
Prior	0
Revolving Loans	0
Total	71
Loan portfolio based on credit risk profile		97
Consumer [Member] | Consumer Indirect [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	301,521
2019	135,238
2018	100,600
2017	50,717
2016	23,807
Prior	8,168
Revolving Loans	0
Total	620,051
Loan portfolio based on credit risk profile	620,051	527,418
Consumer [Member] | Consumer Indirect [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	301,494
2019	135,123
2018	100,482
2017	50,665
2016	23,777
Prior	8,157
Revolving Loans	0
Total	619,698
Loan portfolio based on credit risk profile		526,970
Consumer [Member] | Consumer Indirect [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2020	27
2019	115
2018	118
2017	52
2016	30
Prior	11
Revolving Loans	0
Total	$ 353
Loan portfolio based on credit risk profile		448
Residential and Consumer Portfolio Segments [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		1,583,716
Residential and Consumer Portfolio Segments [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		1,569,568
Residential and Consumer Portfolio Segments [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
Loan portfolio based on credit risk profile		$ 14,148