Loans and Allowance for Loan Losses (Details 7) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Aging information for the Company's past due and non-accrual loans
Current or Less Than 30 Days Past Due	$ 838,061	$ 808,937
30 - 89 Days Past Due	4,851	6,687
90 Days Past Due And Still Accruing	58	243
Non-Accrual	18,243	23,680
Total	861,213	839,547
Commercial, Financial, and Agricultural
Aging information for the Company's past due and non-accrual loans
Current or Less Than 30 Days Past Due	149,366	139,219
30 - 89 Days Past Due	189	942
90 Days Past Due And Still Accruing	0	0
Non-Accrual	5,279	1,684
Total	154,834	141,845
Real Estate Construction - Residential
Aging information for the Company's past due and non-accrual loans
Current or Less Than 30 Days Past Due	16,352	18,738
30 - 89 Days Past Due	0	66
90 Days Past Due And Still Accruing	0	0
Non-Accrual	1,751	2,204
Total	18,103	21,008
Real Estate Construction - Commercial
Aging information for the Company's past due and non-accrual loans
Current or Less Than 30 Days Past Due	46,670	48,230
30 - 89 Days Past Due	0	595
90 Days Past Due And Still Accruing	56	0
Non-Accrual	2,096	6,251
Total	48,822	55,076
Real Estate Mortgage - Residential
Aging information for the Company's past due and non-accrual loans
Current or Less Than 30 Days Past Due	239,469	217,268
30 - 89 Days Past Due	3,229	4,068
90 Days Past Due And Still Accruing	0	129
Non-Accrual	4,419	4,165
Total	247,117	225,630
Real Estate Mortgage - Commercial
Aging information for the Company's past due and non-accrual loans
Current or Less Than 30 Days Past Due	366,653	365,787
30 - 89 Days Past Due	1,203	725
90 Days Past Due And Still Accruing	0	100
Non-Accrual	4,465	9,074
Total	372,321	375,686
Installment and other consumer
Aging information for the Company's past due and non-accrual loans
Current or Less Than 30 Days Past Due	19,551	19,695
30 - 89 Days Past Due	230	291
90 Days Past Due And Still Accruing	2	14
Non-Accrual	233	302
Total	$ 20,016	$ 20,302

Financing receivables that are 30 to 89 days past due.

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Financing receivables that are less than 30 days past due.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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