Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Analysis of risk category of loans by class of loans
Total loans	$ 1,800,329	$ 1,852,888
First Liens
Analysis of risk category of loans by class of loans
Total loans	340,169	349,585
Home Equity
Analysis of risk category of loans by class of loans
Total loans	42,757	43,425
Junior Liens
Analysis of risk category of loans by class of loans
Total loans	34,473	37,629
Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	245,873	245,020
Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	476,014	491,653
Farmland
Analysis of risk category of loans by class of loans
Total loans	83,862	87,116
Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	270,607	298,289
Agriculture
Analysis of risk category of loans by class of loans
Total loans	120,114	128,906
All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	96,084	82,180
Multifamily
Analysis of risk category of loans by class of loans
Total loans	58,895	54,587
All Other Residential
Analysis of risk category of loans by class of loans
Total loans	9,722	11,011
All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	21,759	23,487
Pass
Analysis of risk category of loans by class of loans
Total loans	1,130,658	1,134,694
Pass | First Liens
Analysis of risk category of loans by class of loans
Total loans	110,195	113,360
Pass | Home Equity
Analysis of risk category of loans by class of loans
Total loans	13,229	13,035
Pass | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	9,246	10,419
Pass | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	11,644	11,695
Pass | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	414,347	414,680
Pass | Farmland
Analysis of risk category of loans by class of loans
Total loans	80,045	81,977
Pass | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	236,649	249,614
Pass | Agriculture
Analysis of risk category of loans by class of loans
Total loans	114,878	119,789
Pass | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	80,642	69,952
Pass | Multifamily
Analysis of risk category of loans by class of loans
Total loans	54,073	42,719
Pass | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	1,956	2,840
Pass | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	3,754	4,614
Special Mention
Analysis of risk category of loans by class of loans
Total loans	59,720	82,071
Special Mention | First Liens
Analysis of risk category of loans by class of loans
Total loans	10,336	8,986
Special Mention | Home Equity
Analysis of risk category of loans by class of loans
Total loans	602	469
Special Mention | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	191	50
Special Mention | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	315	262
Special Mention | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	23,878	31,368
Special Mention | Farmland
Analysis of risk category of loans by class of loans
Total loans	3,097	2,718
Special Mention | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	9,962	25,764
Special Mention | Agriculture
Analysis of risk category of loans by class of loans
Total loans	4,703	8,921
Special Mention | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	3,453	132
Special Mention | Multifamily
Analysis of risk category of loans by class of loans
Total loans	3,121	3,328
Special Mention | All Other Residential
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	62	73
Substandard
Analysis of risk category of loans by class of loans
Total loans	75,506	89,062
Substandard | First Liens
Analysis of risk category of loans by class of loans
Total loans	8,760	11,516
Substandard | Home Equity
Analysis of risk category of loans by class of loans
Total loans	1,477	1,631
Substandard | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	476	515
Substandard | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	383	311
Substandard | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	28,895	31,442
Substandard | Farmland
Analysis of risk category of loans by class of loans
Total loans	685	1,616
Substandard | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	21,931	22,038
Substandard | Agriculture
Analysis of risk category of loans by class of loans
Total loans	97	134
Substandard | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	11,124	11,239
Substandard | Multifamily
Analysis of risk category of loans by class of loans
Total loans	1,581	8,481
Substandard | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	33	35
Substandard | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	64	104
Doubtful
Analysis of risk category of loans by class of loans
Total loans	8,864	8,910
Doubtful | First Liens
Analysis of risk category of loans by class of loans
Total loans	1,354	689
Doubtful | Home Equity
Analysis of risk category of loans by class of loans
Total loans	115	23
Doubtful | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	243	70
Doubtful | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	10	25
Doubtful | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	6,103	7,138
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	870	831
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	49	54
Doubtful | Multifamily
Analysis of risk category of loans by class of loans
Total loans	101	59
Doubtful | All Other Residential
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	19	21
Not Rated
Analysis of risk category of loans by class of loans
Total loans	525,581	538,151
Not Rated | First Liens
Analysis of risk category of loans by class of loans
Total loans	209,524	215,034
Not Rated | Home Equity
Analysis of risk category of loans by class of loans
Total loans	27,334	28,267
Not Rated | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	24,317	26,575
Not Rated | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	233,521	232,727
Not Rated | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	2,791	7,025
Not Rated | Farmland
Analysis of risk category of loans by class of loans
Total loans	35	805
Not Rated | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	1,195	42
Not Rated | Agriculture
Analysis of risk category of loans by class of loans
Total loans	436	62
Not Rated | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	816	803
Not Rated | Multifamily
Analysis of risk category of loans by class of loans
Total loans	19	0
Not Rated | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	7,733	8,136
Not Rated | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	$ 17,860	$ 18,675