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Financial Instruments with Off-Balance Sheet Risk - Contractual Amounts Represent Credit Risk (Detail) (USD $)
Sep. 30, 2013
Commitments to extend credit:  
Total Commitments to extend credit $ 89,206,543
Future Loan Commitments [Member]
 
Commitments to extend credit:  
Total Commitments to extend credit 17,400,933
Home Equity Lines of Credit [Member]
 
Commitments to extend credit:  
Total Commitments to extend credit 29,241,288
Unused Lines of Credit [Member]
 
Commitments to extend credit:  
Total Commitments to extend credit 37,814,289
Undisbursed Construction Loans [Member]
 
Commitments to extend credit:  
Total Commitments to extend credit 3,690,036
Financial Standby Letters of Credit [Member]
 
Commitments to extend credit:  
Total Commitments to extend credit $ 1,059,997