Loans and the Allowance for Loan Losses (Details 2) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Impaired loans
Recorded Investment With Allowance	$ 111,676	$ 120,000
Recorded Investment With No Allowance	11,036	22,184
Total Recorded Investment	122,712	142,184
Unpaid Principal Balance With Allowance	122,050	147,040
Unpaid Principal Balance With no Allowance	17,552	37,947
Total Unpaid Principal Balance	139,602	184,987
With Related Allowance	9,306	11,981
With No Related Allowance	0	0
Related Allowance	9,306	11,981
Average Recorded Investment With Related Allowance	114,481	130,414
Average Recorded Investment With No Related Allowance	12,910	34,087
Average recorded investment in impaired loans	127,391	164,501	$ 123,756
Interest Income Recognized With Related Allowance	4,670	6,160
Interest Income Recognized With No Related Allowance	143	1,188
Interest Income, Total	4,813	7,348
Commercial, financial, agricultural
Impaired loans
Recorded Investment With Allowance	5,555	7,214
Recorded Investment With No Allowance	12	249
Unpaid Principal Balance With Allowance	6,242	7,718
Unpaid Principal Balance With no Allowance	1,140	2,364
With Related Allowance	359	285
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	5,300	7,025
Average Recorded Investment With No Related Allowance	93	1,428
Interest Income Recognized With Related Allowance	229	319
Interest Income Recognized With No Related Allowance	0	80
Lease financing
Impaired loans
Recorded Investment With Allowance	0	0
Recorded Investment With No Allowance	0	0
Unpaid Principal Balance With Allowance	0	0
Unpaid Principal Balance With no Allowance	0	0
With Related Allowance	0	0
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	0	0
Average Recorded Investment With No Related Allowance	0	0
Interest Income Recognized With Related Allowance	0	0
Interest Income Recognized With No Related Allowance	0	0
Real estate – construction
Impaired loans
Recorded Investment With Allowance	2,698	164
Recorded Investment With No Allowance	0	0
Unpaid Principal Balance With Allowance	2,710	164
Unpaid Principal Balance With no Allowance	0	0
With Related Allowance	20	0
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	899	155
Average Recorded Investment With No Related Allowance	0	0
Interest Income Recognized With Related Allowance	78	0
Interest Income Recognized With No Related Allowance	0	0
Real estate – 1-4 family mortgage
Impaired loans
Recorded Investment With Allowance	32,352	30,805
Recorded Investment With No Allowance	6,019	5,886
Unpaid Principal Balance With Allowance	34,195	33,901
Unpaid Principal Balance With no Allowance	8,707	9,191
With Related Allowance	4,731	5,066
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	32,961	32,697
Average Recorded Investment With No Related Allowance	7,055	8,222
Interest Income Recognized With Related Allowance	1,193	1,468
Interest Income Recognized With No Related Allowance	28	194
Real estate – commercial mortgage
Impaired loans
Recorded Investment With Allowance	70,580	81,257
Recorded Investment With No Allowance	4,998	16,032
Unpaid Principal Balance With Allowance	78,119	104,404
Unpaid Principal Balance With no Allowance	7,689	26,344
With Related Allowance	4,195	6,629
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	74,830	89,939
Average Recorded Investment With No Related Allowance	5,744	24,381
Interest Income Recognized With Related Allowance	3,155	4,338
Interest Income Recognized With No Related Allowance	115	913
Installment loans to individuals
Impaired loans
Recorded Investment With Allowance	491	560
Recorded Investment With No Allowance	7	17
Unpaid Principal Balance With Allowance	784	853
Unpaid Principal Balance With no Allowance	16	48
With Related Allowance	1	1
With No Related Allowance	0	0
Average Recorded Investment With Related Allowance	491	598
Average Recorded Investment With No Related Allowance	18	56
Interest Income Recognized With Related Allowance	15	35
Interest Income Recognized With No Related Allowance	$ 0	$ 1

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524

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-Publisher FASB
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
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-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953550-111524

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 10
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-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524

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