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Loans and Allowance for Loan Losses (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Summary of loans, by major class within Company's loan portfolio    
Commercial, financial, and agricultural $ 127,014 $ 130,040
Real estate construction - residential 22,568 22,177
Real estate construction - commercial 46,367 43,486
Real estate mortgage - residential 215,919 221,223
Real estate mortgage - commercial 398,555 405,092
Installment and other consumer 23,833 24,966
Total loans $ 834,256 $ 846,984