Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	$ 12,289	$ 17,296
Financing Receivable, Recorded Investment, Current	1,815,185	1,752,494
Total	1,827,474	1,769,790
Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,770	2,005
Financing Receivable, Recorded Investment, Current	468,398	476,984
Total	470,168	478,989
Farmland
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	68	135
Financing Receivable, Recorded Investment, Current	111,938	106,725
Total	112,006	106,860
Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	195	2,224
Financing Receivable, Recorded Investment, Current	197,119	206,844
Total	197,314	209,068
Agriculture
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	1,327	427
Financing Receivable, Recorded Investment, Current	144,571	143,116
Total	145,898	143,543
All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	139	57
Financing Receivable, Recorded Investment, Current	164,411	111,484
Total	164,550	111,541
First Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	3,686	7,812
Financing Receivable, Recorded Investment, Current	274,734	285,913
Total	278,420	293,725
Home Equity
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	276	222
Financing Receivable, Recorded Investment, Current	36,427	37,502
Total	36,703	37,724
Junior Liens
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	569	385
Financing Receivable, Recorded Investment, Current	35,287	32,876
Total	35,856	33,261
Multifamily
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	0
Financing Receivable, Recorded Investment, Current	70,517	70,735
Total	70,517	70,735
All Other Residential
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	0	15
Financing Receivable, Recorded Investment, Current	9,977	10,195
Total	9,977	10,210
Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	4,164	3,961
Financing Receivable, Recorded Investment, Current	277,488	247,882
Total	281,652	251,843
All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
Total Past Due	95	53
Financing Receivable, Recorded Investment, Current	24,318	22,238
Total	24,413	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	5,045	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	456	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	23	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	0	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	78	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	109	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	601	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	133	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	253	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	0	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	0	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	3,315	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	77	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	2,900	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	111	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	5	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	1,031	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	0	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	1,109	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	24	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	54	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	554	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	12	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	4,344	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	1,203	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	45	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	190	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	218	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	30	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	1,976	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	119	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	262	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	295	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