Loans and the Allowance for Loan Losses - (Details 4) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2015 USD ($) Loan	Dec. 31, 2014 USD ($) Loan
Restructured loans
Number of Loans \| Loan	82	53
Pre- Modification Outstanding Recorded Investment	$ 23,796	$ 16,309
Post- Modification Outstanding Recorded Investment	$ 22,018	$ 14,337
Commercial, financial, agricultural
Restructured loans
Number of Loans \| Loan	2	2
Pre- Modification Outstanding Recorded Investment	$ 507	$ 507
Post- Modification Outstanding Recorded Investment	$ 479	$ 507
Real estate – construction
Restructured loans
Number of Loans \| Loan	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0
Real estate – 1-4 family mortgage
Restructured loans
Number of Loans \| Loan	58	35
Pre- Modification Outstanding Recorded Investment	$ 7,163	$ 5,212
Post- Modification Outstanding Recorded Investment	$ 6,581	$ 4,567
Real estate – commercial mortgage
Restructured loans
Number of Loans \| Loan	22	16
Pre- Modification Outstanding Recorded Investment	$ 16,126	$ 10,590
Post- Modification Outstanding Recorded Investment	$ 14,958	$ 9,263
Installment loans to individuals
Restructured loans
Number of Loans \| Loan	0	0
Pre- Modification Outstanding Recorded Investment	$ 0	$ 0
Post- Modification Outstanding Recorded Investment	$ 0	$ 0

Troubled Debt Restructuring Financing Receivable Modifications [Abstract]

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

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