Summary of Activity for Troubled Debt Restructured Loans (Detail) (USD $)	12 Months Ended
	Jun. 30, 2012
Loans And Leases Modified As Troubled Debt Restructuring [Line Items]
Beginning balance	$ 15,883,869
Additions	3,757,042
Charge-offs	(1,990,653)
Payoffs or paydowns	(2,059,553)
Ending Balance	$ 15,590,705