Allowance for Loan Losses (Details 4) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	$ 7,726	$ 11,705
60-89 Days Past Due	2,537	2,858
Greater than 90 days Past Due	6,082	12,977
Total Past Due	16,345	27,540
Current	1,802,940	1,773,282
Total	1,819,285	1,800,822
Commercial & Industrial
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	568	1,076
60-89 Days Past Due	454	266
Greater than 90 days Past Due	3,123	7,900
Total Past Due	4,145	9,242
Current	474,457	459,076
Total	478,602	468,318
Farmland
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	27	0
60-89 Days Past Due	0	0
Greater than 90 days Past Due	0	0
Total Past Due	27	0
Current	94,024	92,602
Total	94,051	92,602
Non Farm, Non Residential
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	1,932	362
60-89 Days Past Due	160	0
Greater than 90 days Past Due	449	2,042
Total Past Due	2,541	2,404
Current	229,676	239,183
Total	232,217	241,587
Agriculture
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	638	31
60-89 Days Past Due	392	32
Greater than 90 days Past Due	210	0
Total Past Due	1,240	63
Current	136,893	136,388
Total	138,133	136,451
All Other Commercial
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	301	50
60-89 Days Past Due	94	217
Greater than 90 days Past Due	0	188
Total Past Due	395	455
Current	126,992	108,184
Total	127,387	108,639
First Liens
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	1,201	5,594
60-89 Days Past Due	827	1,513
Greater than 90 days Past Due	1,786	1,701
Total Past Due	3,814	8,808
Current	320,115	324,141
Total	323,929	332,949
Home Equity
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	126	307
60-89 Days Past Due	27	7
Greater than 90 days Past Due	119	40
Total Past Due	272	354
Current	39,990	41,350
Total	40,262	41,704
Junior Liens
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	225	392
60-89 Days Past Due	68	170
Greater than 90 days Past Due	218	471
Total Past Due	511	1,033
Current	31,594	32,269
Total	32,105	33,302
Multifamily
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	15	103
60-89 Days Past Due	0	19
Greater than 90 days Past Due	0	400
Total Past Due	15	522
Current	72,914	66,138
Total	72,929	66,660
All Other Residential
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	0	88
60-89 Days Past Due	23	0
Greater than 90 days Past Due	4	1
Total Past Due	27	89
Current	9,167	9,169
Total	9,194	9,258
Motor Vehicle
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	2,558	3,579
60-89 Days Past Due	473	612
Greater than 90 days Past Due	170	227
Total Past Due	3,201	4,418
Current	246,295	243,146
Total	249,496	247,564
All Other Consumer
Aging of recorded investment in loans by past due category and class of loans
30-59 Days Past Due	135	123
60-89 Days Past Due	19	22
Greater than 90 days Past Due	3	7
Total Past Due	157	152
Current	20,823	21,636
Total	$ 20,980	$ 21,788