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Borrowings (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Funds through wholesale repurchase agreement $ 10,000,000  
Term of wholesale repurchase agreement 5 years  
Counterparties option to call 3 years  
Line of credit with the FHLB of Atlanta 113,800,000  
FHLB advances outstanding 32,300,000  
Unused line of credit total 81,500,000  
Long-term borrowings with the FHLB 32,250,000 42,250,000
Interest rates on outstanding long-term advances ranged from 3.02%  
Interest rates on outstanding long-term advances ranged to 4.07%  
Weighted average interest rate on outstanding long-term advances 3.50%  
Forecast 2014 [Member]
    
Long-term borrowings with the FHLB 2,300,000  
Forecast 2015 [Member]
    
Long-term borrowings with the FHLB $ 30,000,000