Allowance for Loan Losses (Details 6) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	$ 1,862,348	$ 1,845,040
Financing Receivable, Recorded Investment, Past Due	13,850	15,501
Financing Receivable, Recorded Investment, Current	1,848,498	1,829,539
Total loans	1,854,027	1,835,974
Loans not rated	1,854,027
Commercial & Industrial
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	463,410	476,089
Financing Receivable, Recorded Investment, Past Due	1,620	1,683
Financing Receivable, Recorded Investment, Current	461,790	474,406
Total loans	462,065	474,904
Farmland
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	109,789	111,200
Financing Receivable, Recorded Investment, Past Due	3,937	303
Financing Receivable, Recorded Investment, Current	105,852	110,897
Total loans	108,237	109,185
Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	203,987	195,488
Financing Receivable, Recorded Investment, Past Due	152	368
Financing Receivable, Recorded Investment, Current	203,835	195,120
Total loans	203,549	195,085
Agriculture
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	147,746	151,772
Financing Receivable, Recorded Investment, Past Due	721	713
Financing Receivable, Recorded Investment, Current	147,025	151,059
Total loans	146,064	149,535
All Other Commercial
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	188,670	178,186
Financing Receivable, Recorded Investment, Past Due	20	15
Financing Receivable, Recorded Investment, Current	188,650	178,171
Total loans	187,743	177,473
First Liens
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	261,030	270,778
Financing Receivable, Recorded Investment, Past Due	3,177	6,332
Financing Receivable, Recorded Investment, Current	257,853	264,446
Total loans	260,199	269,948
Home Equity
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	35,429	36,059
Financing Receivable, Recorded Investment, Past Due	164	277
Financing Receivable, Recorded Investment, Current	35,265	35,782
Total loans	35,366	36,003
Junior Liens
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	38,210	37,407
Financing Receivable, Recorded Investment, Past Due	480	495
Financing Receivable, Recorded Investment, Current	37,730	36,912
Total loans	38,129	37,315
Multifamily
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	83,053	67,799
Financing Receivable, Recorded Investment, Past Due	0	0
Financing Receivable, Recorded Investment, Current	83,053	67,799
Total loans	82,894	67,643
All Other Residential
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	13,271	13,036
Financing Receivable, Recorded Investment, Past Due	13	54
Financing Receivable, Recorded Investment, Current	13,258	12,982
Total loans	13,239	13,002
Motor Vehicle
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	293,262	282,697
Financing Receivable, Recorded Investment, Past Due	3,475	5,093
Financing Receivable, Recorded Investment, Current	289,787	277,604
Total loans	292,151	281,465
All Other Consumer
Analysis of risk category of loans by class of loans
Financing Receivable Recorded Investment	24,491	24,529
Financing Receivable, Recorded Investment, Past Due	91	168
Financing Receivable, Recorded Investment, Current	24,400	24,361
Total loans	24,391	24,416
Pass
Analysis of risk category of loans by class of loans
Total loans	1,123,656	1,092,587
Pass | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	423,394	427,262
Pass | Farmland
Analysis of risk category of loans by class of loans
Total loans	89,607	95,115
Pass | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	185,767	172,739
Pass | Agriculture
Analysis of risk category of loans by class of loans
Total loans	117,685	121,983
Pass | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	177,635	163,492
Pass | First Liens
Analysis of risk category of loans by class of loans
Total loans	44,650	43,674
Pass | Home Equity
Analysis of risk category of loans by class of loans
Total loans	375	363
Pass | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	1,750	1,826
Pass | Multifamily
Analysis of risk category of loans by class of loans
Total loans	82,793	66,133
Pass | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Pass | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	0	0
Pass | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	0	0
Special Mention
Analysis of risk category of loans by class of loans
Total loans	36,276	47,868
Special Mention | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	9,541	16,286
Special Mention | Farmland
Analysis of risk category of loans by class of loans
Total loans	9,108	8,300
Special Mention | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	2,924	5,745
Special Mention | Agriculture
Analysis of risk category of loans by class of loans
Total loans	12,637	13,885
Special Mention | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	372	596
Special Mention | First Liens
Analysis of risk category of loans by class of loans
Total loans	1,613	1,541
Special Mention | Home Equity
Analysis of risk category of loans by class of loans
Total loans	0	0
Special Mention | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	81	85
Special Mention | Multifamily
Analysis of risk category of loans by class of loans
Total loans	0	1,430
Special Mention | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Special Mention | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	0	0
Special Mention | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	0	0
Substandard
Analysis of risk category of loans by class of loans
Total loans	74,090	74,699
Substandard | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	21,668	25,177
Substandard | Farmland
Analysis of risk category of loans by class of loans
Total loans	9,511	5,238
Substandard | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	14,858	16,601
Substandard | Agriculture
Analysis of risk category of loans by class of loans
Total loans	15,358	12,301
Substandard | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	7,869	10,058
Substandard | First Liens
Analysis of risk category of loans by class of loans
Total loans	3,909	4,466
Substandard | Home Equity
Analysis of risk category of loans by class of loans
Total loans	89	86
Substandard | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	328	401
Substandard | Multifamily
Analysis of risk category of loans by class of loans
Total loans	0	15
Substandard | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	31	0
Substandard | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	435	331
Substandard | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	34	25
Doubtful
Analysis of risk category of loans by class of loans
Total loans	453	569
Doubtful | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	339	449
Doubtful | Farmland
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | Agriculture
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	0	76
Doubtful | First Liens
Analysis of risk category of loans by class of loans
Total loans	13	18
Doubtful | Home Equity
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	101	26
Doubtful | Multifamily
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	0	0
Doubtful | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	0	0
Not Rated
Analysis of risk category of loans by class of loans
Total loans	619,552	620,251
Not Rated | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	7,123	5,730
Not Rated | Farmland
Analysis of risk category of loans by class of loans
Total loans	11	532
Not Rated | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	0	0
Not Rated | Agriculture
Analysis of risk category of loans by class of loans
Total loans	384	1,366
Not Rated | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	1,867	3,251
Not Rated | First Liens
Analysis of risk category of loans by class of loans
Total loans	210,014	220,249
Not Rated | Home Equity
Analysis of risk category of loans by class of loans
Total loans	34,902	35,554
Not Rated | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	35,869	34,977
Not Rated | Multifamily
Analysis of risk category of loans by class of loans
Total loans	101	65
Not Rated | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	13,208	13,002
Not Rated | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	291,716	281,134
Not Rated | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	$ 24,357	$ 24,391