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Loans and Allowance for Loan Losses (Details) (USD $) | Jun. 30, 2013 | Dec. 31, 2012
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Summary of loans, by major class within Company's loan portfolio |  |
Total loans | $ 838,990,000 | $ 846,984,000
Carrying amount of loans pledged as collateral to the Federal Home Loan Bank | 405,522,000 |
Commercial, financial, and agricultural |  |
Summary of loans, by major class within Company's loan portfolio |  |
Total loans | 136,643,000 | 130,040,000
Real estate construction - residential |  |
Summary of loans, by major class within Company's loan portfolio |  |
Total loans | 23,647,000 | 22,177,000
Real estate construction - commercial |  |
Summary of loans, by major class within Company's loan portfolio |  |
Total loans | 48,146,000 | 43,486,000
Real estate mortgage - residential |  |
Summary of loans, by major class within Company's loan portfolio |  |
Total loans | 217,828,000 | 221,223,000
Real estate mortgage - commercial |  |
Summary of loans, by major class within Company's loan portfolio |  |
Total loans | 389,706,000 | 405,092,000
Installment and other consumer |  |
Summary of loans, by major class within Company's loan portfolio |  |
Total loans | $ 23,020,000 | $ 24,966,000

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- Definition 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 -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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- Definition The carrying amount, as of the date of the latest financial statement presented, of loans receivable which are owned but transferred to serve as collateral for the payment of FHLB debt obligations, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=7523297&loc=SL6224234-111729 + Details
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