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Schedule of Loans to Principal Officers, Directors, and their Affiliates (Detail) (USD $)
12 Months Ended
Jun. 30, 2012
Related Party Transaction [Line Items]  
Beginning balance $ 5,764,092
Effect of changes in the composition of the Board of Directors   
New loans 9,061,720
Repayments (698,065)
Ending balance $ 14,127,747