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Long-term Borrowings (Tables)
12 Months Ended
Dec. 31, 2014
Debt Disclosure [Abstract]  
Schedule of long-term borrowings
   
2014
   
2013
   
2012
 
                   
Federal Home Loan Bank of Atlanta, convertible advances
  $ 20,000,000     $ 20,000,000     $ 20,000,000  
Schedule of maturities of long-term borrowings
 
   
2014
 
       
2017
  $ 10,000,000  
2018
    10,000,000  
    $ 20,000,000