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
	Mar. 31, 2021	Dec. 31, 2020
Credit Risk Profile, Segregated by Class [Abstract]
Consumer mortgage loans secured by real estate properties for which formal foreclosure proceedings are in process	$ 2,700	$ 2,900
Commercial [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	247,072	599,119
2020/2019	480,500	253,159
2019/2018	231,942	200,954
2018/2017	191,742	171,851
2017/2016	159,519	171,600
Prior	405,193	304,879
Revolving Loans	184,516	191,965
Total	1,900,484	1,893,527
Commercial [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	240,036	549,796
2020/2019	434,687	233,331
2019/2018	211,251	168,142
2018/2017	160,610	151,432
2017/2016	143,204	134,594
Prior	322,569	257,363
Revolving Loans	175,867	183,151
Total	$ 1,688,224	1,677,809
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]
2021/2020	$ 1,159	33,686
2020/2019	31,929	8,273
2019/2018	10,701	12,009
2018/2017	12,773	11,985
2017/2016	11,695	24,744
Prior	51,354	24,369
Revolving Loans	7,916	8,290
Total	127,527	123,356
Commercial [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	328	1,946
2020/2019	2,246	4,241
2019/2018	3,426	15,023
2018/2017	9,706	323
2017/2016	140	496
Prior	780	3,382
Revolving Loans	20	239
Total	16,646	25,650
Commercial [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	5,549	13,691
2020/2019	11,638	7,314
2019/2018	6,564	5,780
2018/2017	8,653	8,111
2017/2016	4,480	11,766
Prior	30,457	19,737
Revolving Loans	713	285
Total	68,054	66,684
Commercial [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	33	28
Revolving Loans	0	0
Total	33	28
Commercial [Member] | Hotel/Motel [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	14,733	35,458
2020/2019	35,363	75,003
2019/2018	61,846	40,395
2018/2017	40,609	42,866
2017/2016	42,544	31,937
Prior	63,829	35,040
Revolving Loans	50	0
Total	258,974	260,699
Commercial [Member] | Hotel/Motel [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	14,733	11,507
2020/2019	11,498	70,504
2019/2018	54,602	27,453
2018/2017	27,835	39,651
2017/2016	38,701	6,357
Prior	25,794	22,372
Revolving Loans	50	0
Total	173,213	177,844
Commercial [Member] | Hotel/Motel [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	23,951
2020/2019	23,865	2,506
2019/2018	5,251	3,366
2018/2017	0	2,102
2017/2016	2,730	16,740
Prior	24,125	7,422
Revolving Loans	0	0
Total	55,971	56,087
Commercial [Member] | Hotel/Motel [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	1,993
2019/2018	1,993	9,576
2018/2017	9,479	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	11,472	11,569
Commercial [Member] | Hotel/Motel [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	3,295	1,113
2017/2016	1,113	8,840
Prior	13,910	5,246
Revolving Loans	0	0
Total	18,318	15,199
Commercial [Member] | Hotel/Motel [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Commercial Real Estate Residential [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	41,607	93,339
2020/2019	87,283	43,419
2019/2018	41,464	33,931
2018/2017	31,051	24,570
2017/2016	19,736	27,029
Prior	73,783	54,988
Revolving Loans	10,155	10,652
Total	305,079	287,928
Commercial [Member] | Commercial Real Estate Residential [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	37,400	85,403
2020/2019	80,666	39,238
2019/2018	37,372	29,179
2018/2017	27,044	17,390
2017/2016	16,221	21,272
Prior	60,778	46,419
Revolving Loans	9,966	10,470
Total	269,447	249,371
Commercial [Member] | Commercial Real Estate Residential [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	205	1,714
2020/2019	1,471	2,214
2019/2018	2,074	2,438
2018/2017	2,208	2,962
2017/2016	2,851	4,520
Prior	8,759	5,306
Revolving Loans	164	182
Total	17,732	19,336
Commercial [Member] | Commercial Real Estate Residential [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	328	1,921
2020/2019	2,246	1,361
2019/2018	1,433	323
2018/2017	204	142
2017/2016	140	129
Prior	128	0
Revolving Loans	0	0
Total	4,479	3,876
Commercial [Member] | Commercial Real Estate Residential [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	3,674	4,301
2020/2019	2,900	606
2019/2018	585	1,991
2018/2017	1,595	4,076
2017/2016	524	1,108
Prior	4,118	3,263
Revolving Loans	25	0
Total	13,421	15,345
Commercial [Member] | Commercial Real Estate Residential [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Commercial Real Estate Nonresidential [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	62,649	137,592
2020/2019	129,245	107,418
2019/2018	103,807	86,299
2018/2017	80,871	89,244
2017/2016	83,285	105,118
Prior	247,353	191,112
Revolving Loans	25,768	26,455
Total	732,978	743,238
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	60,781	125,205
2020/2019	117,993	97,204
2019/2018	95,141	77,685
2018/2017	72,884	80,416
2017/2016	75,415	100,740
Prior	217,747	165,839
Revolving Loans	24,882	25,524
Total	664,843	672,613
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	227	5,133
2020/2019	4,526	3,175
2019/2018	3,041	5,075
2018/2017	4,516	6,366
2017/2016	5,474	3,020
Prior	17,591	11,046
Revolving Loans	557	601
Total	35,932	34,416
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	887
2019/2018	0	68
2018/2017	18	0
2017/2016	0	0
Prior	338	3,382
Revolving Loans	20	115
Total	376	4,452
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	1,641	7,254
2020/2019	6,726	6,152
2019/2018	5,625	3,471
2018/2017	3,453	2,462
2017/2016	2,396	1,358
Prior	11,644	10,817
Revolving Loans	309	215
Total	31,794	31,729
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	33	28
Revolving Loans	0	0
Total	33	28
Commercial [Member] | Dealer Floorplans [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	63,545	69,087
Total	63,545	69,087
Commercial [Member] | Dealer Floorplans [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	63,229	68,610
Total	63,229	68,610
Commercial [Member] | Dealer Floorplans [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	316	477
Total	316	477
Commercial [Member] | Dealer Floorplans [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Dealer Floorplans [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Dealer Floorplans [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Commercial Other [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	30,671	80,063
2020/2019	71,289	27,319
2019/2018	24,825	40,329
2018/2017	39,211	15,171
2017/2016	13,954	7,516
Prior	20,228	23,739
Revolving Loans	84,998	85,771
Total	285,176	279,908
Commercial [Member] | Commercial Other [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	29,710	75,014
2020/2019	67,210	26,385
2019/2018	24,136	33,825
2018/2017	32,847	13,975
2017/2016	12,867	6,225
Prior	18,250	22,733
Revolving Loans	77,740	78,547
Total	262,760	256,704
Commercial [Member] | Commercial Other [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	727	2,888
2020/2019	2,067	378
2019/2018	335	1,130
2018/2017	6,049	555
2017/2016	640	464
Prior	879	595
Revolving Loans	6,879	7,030
Total	17,576	13,040
Commercial [Member] | Commercial Other [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	25
2020/2019	0	0
2019/2018	0	5,056
2018/2017	5	181
2017/2016	0	367
Prior	314	0
Revolving Loans	0	124
Total	319	5,753
Commercial [Member] | Commercial Other [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	234	2,136
2020/2019	2,012	556
2019/2018	354	318
2018/2017	310	460
2017/2016	447	460
Prior	785	411
Revolving Loans	379	70
Total	4,521	4,411
Commercial [Member] | Commercial Other [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Commercial Unsecured SBA PPP [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	97,412	252,667
2020/2019	157,320	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	254,732	252,667
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | Pass [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	97,412	252,667
2020/2019	157,320	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	254,732	252,667
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | Watch [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | OAEM [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | Substandard [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial [Member] | Commercial Unsecured SBA PPP [Member] | Doubtful [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Residential [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	42,225	214,629
2020/2019	206,775	119,737
2019/2018	105,023	57,115
2018/2017	50,156	61,229
2017/2016	54,716	48,628
Prior	322,219	295,878
Revolving Loans	90,507	91,113
Total	871,621	888,329
Residential [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	42,225	214,629
2020/2019	206,775	119,301
2019/2018	104,572	56,812
2018/2017	49,852	60,915
2017/2016	54,276	48,276
Prior	314,477	287,932
Revolving Loans	89,965	90,724
Total	862,142	878,589
Residential [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	436
2019/2018	451	303
2018/2017	304	314
2017/2016	440	352
Prior	7,742	7,946
Revolving Loans	542	389
Total	9,479	9,740
Residential [Member] | Real Estate Mortgage [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	42,225	214,629
2020/2019	206,775	119,737
2019/2018	105,023	57,115
2018/2017	50,156	61,229
2017/2016	54,716	48,605
Prior	311,131	283,244
Revolving Loans	0	0
Total	770,026	784,559
Residential [Member] | Real Estate Mortgage [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	42,225	214,629
2020/2019	206,775	119,301
2019/2018	104,572	56,812
2018/2017	49,852	60,915
2017/2016	54,276	48,253
Prior	304,023	275,883
Revolving Loans	0	0
Total	761,723	775,793
Residential [Member] | Real Estate Mortgage [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	436
2019/2018	451	303
2018/2017	304	314
2017/2016	440	352
Prior	7,108	7,361
Revolving Loans	0	0
Total	8,303	8,766
Residential [Member] | Home Equity Lines [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	23
Prior	11,088	12,634
Revolving Loans	90,507	91,113
Total	101,595	103,770
Residential [Member] | Home Equity Lines [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	23
Prior	10,454	12,049
Revolving Loans	89,965	90,724
Total	100,419	102,796
Residential [Member] | Home Equity Lines [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Prior	634	585
Revolving Loans	542	389
Total	1,176	974
Consumer [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	87,565	374,205
2020/2019	334,818	168,288
2019/2018	149,421	119,061
2018/2017	103,937	59,881
2017/2016	50,242	30,388
Prior	40,716	20,532
Revolving Loans	0	0
Total	766,699	772,355
Consumer [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	87,565	374,171
2020/2019	334,709	168,116
2019/2018	149,350	118,943
2018/2017	103,877	59,822
2017/2016	50,189	30,358
Prior	40,704	20,521
Revolving Loans	0	0
Total	766,394	771,931
Consumer [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	34
2020/2019	109	172
2019/2018	71	118
2018/2017	60	59
2017/2016	53	30
Prior	12	11
Revolving Loans	0	0
Total	305	424
Consumer [Member] | Consumer Direct [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	17,940	72,684
2020/2019	62,340	33,050
2019/2018	28,637	18,461
2018/2017	16,091	9,164
2017/2016	7,553	6,581
Prior	16,833	12,364
Revolving Loans	0	0
Total	149,394	152,304
Consumer [Member] | Consumer Direct [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	17,940	72,677
2020/2019	62,340	32,993
2019/2018	28,626	18,461
2018/2017	16,071	9,157
2017/2016	7,553	6,581
Prior	16,833	12,364
Revolving Loans	0	0
Total	149,363	152,233
Consumer [Member] | Consumer Direct [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	7
2020/2019	0	57
2019/2018	11	0
2018/2017	20	7
2017/2016	0	0
Prior	0	0
Revolving Loans	0	0
Total	31	71
Consumer [Member] | Consumer Indirect [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	69,625	301,521
2020/2019	272,478	135,238
2019/2018	120,784	100,600
2018/2017	87,846	50,717
2017/2016	42,689	23,807
Prior	23,883	8,168
Revolving Loans	0	0
Total	617,305	620,051
Consumer [Member] | Consumer Indirect [Member] | Performing [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	69,625	301,494
2020/2019	272,369	135,123
2019/2018	120,724	100,482
2018/2017	87,806	50,665
2017/2016	42,636	23,777
Prior	23,871	8,157
Revolving Loans	0	0
Total	617,031	619,698
Consumer [Member] | Consumer Indirect [Member] | Nonperforming [Member]
Credit Risk Profile, Segregated by Class [Abstract]
2021/2020	0	27
2020/2019	109	115
2019/2018	60	118
2018/2017	40	52
2017/2016	53	30
Prior	12	11
Revolving Loans	0	0
Total	$ 274	$ 353