Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 32,939	$ 31,590
Financing Receivable, Not Past Due	2,597,677	2,634,852
Total	2,630,616	2,666,442
Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	7,923	5,030
Financing Receivable, Not Past Due	609,765	594,925
Total	617,688	599,955
Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,532	2,221
Financing Receivable, Not Past Due	133,247	137,730
Total	134,779	139,951
Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	4,893	3,853
Financing Receivable, Not Past Due	379,990	398,854
Total	384,883	402,707
Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	6	405
Financing Receivable, Not Past Due	144,779	162,794
Total	144,785	163,199
All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	972	109
Financing Receivable, Not Past Due	292,928	288,845
Total	293,900	288,954
First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	8,813	9,202
Financing Receivable, Not Past Due	365,938	375,924
Total	374,751	385,126
Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	361	221
Financing Receivable, Not Past Due	68,207	70,813
Total	68,568	71,034
Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	412	564
Financing Receivable, Not Past Due	55,153	54,533
Total	55,565	55,097
Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,621	0
Financing Receivable, Not Past Due	143,192	148,282
Total	144,813	148,282
All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	110	1,972
Financing Receivable, Not Past Due	21,125	22,510
Total	21,235	24,482
Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	5,948	7,741
Financing Receivable, Not Past Due	353,305	347,950
Total	359,253	355,691
All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	348	272
Financing Receivable, Not Past Due	30,048	31,692
Total	30,396	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	24,235	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	3,593	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	115	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	4,842	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	0	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	929	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	6,972	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	181	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	379	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	1,621	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	69	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	5,215	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	319	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	3,628	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	2,695	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	7	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	6	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	0	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	344	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	23	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	4	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	0	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	534	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	15	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	5,076	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	1,635	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	1,417	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	44	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	0	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	43	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	1,497	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	157	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	29	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	0	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	41	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	199	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	$ 14	$ 2