Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 12,463	$ 17,296
Financing Receivable, Recorded Investment, Current	1,756,692	1,752,494
Total	1,769,155	1,769,790
Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,185	2,005
Financing Receivable, Recorded Investment, Current	478,929	476,984
Total	481,114	478,989
Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	15	135
Financing Receivable, Recorded Investment, Current	110,157	106,725
Total	110,172	106,860
Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	487	2,224
Financing Receivable, Recorded Investment, Current	209,322	206,844
Total	209,809	209,068
Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	711	427
Financing Receivable, Recorded Investment, Current	125,988	143,116
Total	126,699	143,543
All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	262	57
Financing Receivable, Recorded Investment, Current	125,282	111,484
Total	125,544	111,541
First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	5,282	7,812
Financing Receivable, Recorded Investment, Current	283,242	285,913
Total	288,524	293,725
Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	136	222
Financing Receivable, Recorded Investment, Current	35,779	37,502
Total	35,915	37,724
Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	360	385
Financing Receivable, Recorded Investment, Current	33,310	32,876
Total	33,670	33,261
Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	93	0
Financing Receivable, Recorded Investment, Current	71,140	70,735
Total	71,233	70,735
All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	19	15
Financing Receivable, Recorded Investment, Current	8,740	10,195
Total	8,759	10,210
Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	2,789	3,961
Financing Receivable, Recorded Investment, Current	252,686	247,882
Total	255,475	251,843
All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	124	53
Financing Receivable, Recorded Investment, Current	22,117	22,238
Total	22,241	22,291
Financing Receivables, 30 to 59 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	7,054	10,864
Financing Receivables, 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	412	326
Financing Receivables, 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	15	135
Financing Receivables, 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	193	1,824
Financing Receivables, 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	194	65
Financing Receivables, 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	219	25
Financing Receivables, 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	3,346	4,960
Financing Receivables, 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	27	85
Financing Receivables, 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	167	179
Financing Receivables, 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	93	0
Financing Receivables, 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	19	15
Financing Receivables, 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	2,305	3,212
Financing Receivables, 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	64	38
Financing Receivables, 60 to 89 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,235	2,245
Financing Receivables, 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	483	274
Financing Receivables, 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
Financing Receivables, 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	6	90
Financing Receivables, 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	207	38
Financing Receivables, 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	32
Financing Receivables, 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	168	1,181
Financing Receivables, 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	0	23
Financing Receivables, 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	29
Financing Receivables, 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
Financing Receivables, 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
Financing Receivables, 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	294	568
Financing Receivables, 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	54	10
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	4,174	4,187
Financing Receivables, Equal to 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	1,290	1,405
Financing Receivables, Equal to 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	0	0
Financing Receivables, Equal to 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	288	310
Financing Receivables, Equal to 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	310	324
Financing Receivables, Equal to 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	24	0
Financing Receivables, Equal to 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	1,768	1,671
Financing Receivables, Equal to 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	109	114
Financing Receivables, Equal to 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	189	177
Financing Receivables, Equal to 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
Financing Receivables, Equal to 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	0	0
Financing Receivables, Equal to 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	190	181
Financing Receivables, Equal to 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	$ 6	$ 5