Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 24,532	$ 31,590
Financing Receivable, Not Past Due	2,741,405	2,634,852
Total	2,765,937	2,666,442
Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	4,604	5,030
Financing Receivable, Not Past Due	726,012	594,925
Total	730,616	599,955
Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	92	2,221
Financing Receivable, Not Past Due	123,546	137,730
Total	123,638	139,951
Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,233	3,853
Financing Receivable, Not Past Due	354,478	398,854
Total	355,711	402,707
Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,589	405
Financing Receivable, Not Past Due	142,984	162,794
Total	145,573	163,199
All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	860	109
Financing Receivable, Not Past Due	310,719	288,845
Total	311,579	288,954
First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	5,671	9,202
Financing Receivable, Not Past Due	328,611	375,924
Total	334,282	385,126
Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	412	221
Financing Receivable, Not Past Due	62,832	70,813
Total	63,244	71,034
Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	439	564
Financing Receivable, Not Past Due	54,518	54,533
Total	54,957	55,097
Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,577	0
Financing Receivable, Not Past Due	159,565	148,282
Total	161,142	148,282
All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	60	1,972
Financing Receivable, Not Past Due	14,589	22,510
Total	14,649	24,482
Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	6,810	7,741
Financing Receivable, Not Past Due	432,490	347,950
Total	439,300	355,691
All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	185	272
Financing Receivable, Not Past Due	31,061	31,692
Total	31,246	31,964
Financial Asset, 30 to 59 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	11,866	21,801
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	644	2,885
Financial Asset, 30 to 59 Days Past Due [Member] | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	132
Financial Asset, 30 to 59 Days Past Due [Member] | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,011	3,749
Financial Asset, 30 to 59 Days Past Due [Member] | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,037	277
Financial Asset, 30 to 59 Days Past Due [Member] | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	55	0
Financial Asset, 30 to 59 Days Past Due [Member] | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,636	6,452
Financial Asset, 30 to 59 Days Past Due [Member] | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	288	124
Financial Asset, 30 to 59 Days Past Due [Member] | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	58	384
Financial Asset, 30 to 59 Days Past Due [Member] | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	197	0
Financial Asset, 30 to 59 Days Past Due [Member] | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	1,082
Financial Asset, 30 to 59 Days Past Due [Member] | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	5,757	6,488
Financial Asset, 30 to 59 Days Past Due [Member] | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	183	228
Financial Asset, 60 to 89 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,213	3,421
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	206	766
Financial Asset, 60 to 89 Days Past Due [Member] | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	104
Financial Asset, 60 to 89 Days Past Due [Member] | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	128
Financial Asset, 60 to 89 Days Past Due [Member] | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	19	0
Financial Asset, 60 to 89 Days Past Due [Member] | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,125	1,292
Financial Asset, 60 to 89 Days Past Due [Member] | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	25	63
Financial Asset, 60 to 89 Days Past Due [Member] | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	57	43
Financial Asset, 60 to 89 Days Past Due [Member] | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	7	0
Financial Asset, 60 to 89 Days Past Due [Member] | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	772	983
Financial Asset, 60 to 89 Days Past Due [Member] | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2	42
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	10,453	6,368
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	3,754	1,379
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	92	2,089
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	222	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	552	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	786	109
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,910	1,458
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	99	34
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	324	137
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,380	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	53	890
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	281	270
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 0	$ 2