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Commitments and Contingencies (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Commitments and Contingencies    
% of Total Loans 100.00% 100.00%
Probable loan loss experience on unfunded obligations
   
Commitments and Contingencies    
Loss Contingency, Estimate of Possible Loss 110,000  
Undisbursed lines of credit
   
Commitments and Contingencies    
Commitments to extend credit 162,261,000 128,585,000
Standby letters of credit and financial guarantees
   
Commitments and Contingencies    
Commitments to extend credit 590,000 420,000
Commercial
   
Commitments and Contingencies    
Percentage Of Loan Commitments 58.70%  
% of Total Loans 26.40% 25.30%
Real Estate Portfolio Segment
   
Commitments and Contingencies    
Percentage Of Loan Commitments 30.82%  
Maximum loan to value ratio 80.00%  
% of Total Loans 60.10% 60.40%
Consumer
   
Commitments and Contingencies    
Percentage Of Loan Commitments 10.48%  
% of Total Loans 13.50% 14.30%
Real estate related
   
Commitments and Contingencies    
% of Total Loans 71.00% 72.40%
Commercial and Real estate related
   
Commitments and Contingencies    
% of Total Loans 97.40% 97.70%