Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Analysis of risk category of loans by class of loans
Total loans	$ 1,809,582	$ 1,852,888
Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	478,793	491,653
Farmland
Analysis of risk category of loans by class of loans
Total loans	84,061	87,116
Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	258,784	298,289
Agriculture
Analysis of risk category of loans by class of loans
Total loans	127,671	128,906
All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	108,514	82,180
First Liens
Analysis of risk category of loans by class of loans
Total loans	335,226	349,585
Home Equity
Analysis of risk category of loans by class of loans
Total loans	42,425	43,425
Junior Liens
Analysis of risk category of loans by class of loans
Total loans	33,707	37,629
Multifamily
Analysis of risk category of loans by class of loans
Total loans	60,835	54,587
All Other Residential
Analysis of risk category of loans by class of loans
Total loans	10,284	11,011
Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	247,098	245,020
All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	22,184	23,487
Pass
Analysis of risk category of loans by class of loans
Total loans	1,154,269	1,134,694
Pass | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	417,192	414,680
Pass | Farmland
Analysis of risk category of loans by class of loans
Total loans	79,780	81,977
Pass | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	228,337	249,614
Pass | Agriculture
Analysis of risk category of loans by class of loans
Total loans	122,541	119,789
Pass | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	93,628	69,952
Pass | First Liens
Analysis of risk category of loans by class of loans
Total loans	115,051	113,360
Pass | Home Equity
Analysis of risk category of loans by class of loans
Total loans	13,207	13,035
Pass | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	9,088	10,419
Pass | Multifamily
Analysis of risk category of loans by class of loans
Total loans	56,738	42,719
Pass | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	3,285	2,840
Pass | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	11,752	11,695
Pass | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	3,670	4,614
Special Mention
Analysis of risk category of loans by class of loans
Total loans	47,558	82,071
Special Mention | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	19,532	31,368
Special Mention | Farmland
Analysis of risk category of loans by class of loans
Total loans	3,717	2,718
Special Mention | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	8,266	25,764
Special Mention | Agriculture
Analysis of risk category of loans by class of loans
Total loans	4,939	8,921
Special Mention | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	3,639	132
Special Mention | First Liens
Analysis of risk category of loans by class of loans
Total loans	4,217	8,986
Special Mention | Home Equity
Analysis of risk category of loans by class of loans
Total loans	370	469
Special Mention | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	39	50
Special Mention | Multifamily
Analysis of risk category of loans by class of loans
Total loans	2,473	3,328
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	290	262
Special Mention | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	76	73
Substandard
Analysis of risk category of loans by class of loans
Total loans	72,585	89,062
Substandard | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	28,254	31,442
Substandard | Farmland
Analysis of risk category of loans by class of loans
Total loans	435	1,616
Substandard | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	20,812	22,038
Substandard | Agriculture
Analysis of risk category of loans by class of loans
Total loans	80	134
Substandard | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	10,550	11,239
Substandard | First Liens
Analysis of risk category of loans by class of loans
Total loans	8,274	11,516
Substandard | Home Equity
Analysis of risk category of loans by class of loans
Total loans	1,526	1,631
Substandard | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	631	515
Substandard | Multifamily
Analysis of risk category of loans by class of loans
Total loans	1,568	8,481
Substandard | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	33	35
Substandard | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	358	311
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	8,925	8,910
Doubtful | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	6,656	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	543	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	47	54
Doubtful | First Liens
Analysis of risk category of loans by class of loans
Total loans	1,245	689
Doubtful | Home Equity
Analysis of risk category of loans by class of loans
Total loans	113	23
Doubtful | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	241	70
Doubtful | Multifamily
Analysis of risk category of loans by class of loans
Total loans	48	59
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	9	25
Doubtful | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	23	21
Not Rated
Analysis of risk category of loans by class of loans
Total loans	526,245	538,151
Not Rated | Commercial & Industrial
Analysis of risk category of loans by class of loans
Total loans	7,159	7,025
Not Rated | Farmland
Analysis of risk category of loans by class of loans
Total loans	129	805
Not Rated | Non Farm, Non Residential
Analysis of risk category of loans by class of loans
Total loans	826	42
Not Rated | Agriculture
Analysis of risk category of loans by class of loans
Total loans	111	62
Not Rated | All Other Commercial
Analysis of risk category of loans by class of loans
Total loans	650	803
Not Rated | First Liens
Analysis of risk category of loans by class of loans
Total loans	206,439	215,034
Not Rated | Home Equity
Analysis of risk category of loans by class of loans
Total loans	27,209	28,267
Not Rated | Junior Liens
Analysis of risk category of loans by class of loans
Total loans	23,708	26,575
Not Rated | Multifamily
Analysis of risk category of loans by class of loans
Total loans	8	0
Not Rated | All Other Residential
Analysis of risk category of loans by class of loans
Total loans	6,966	8,136
Not Rated | Motor Vehicle
Analysis of risk category of loans by class of loans
Total loans	234,689	232,727
Not Rated | All Other Consumer
Analysis of risk category of loans by class of loans
Total loans	$ 18,351	$ 18,675