Loans by Class Modified as Troubled Debt Restructurings Payment Default (Detail) (USD $)	12 Months Ended
	Jun. 30, 2012 Loan	Jun. 30, 2011 Loan
Financing Receivable, Modifications [Line Items]
Number of Loans	7	15
Pre-Modification Outstanding Recorded Investment	$ 4,111,941	$ 6,676,643
Post-Modification Outstanding Recorded Investment	3,179,818	6,676,643
Troubled Debt Restructuring Subsequently Defaulted In Past Twelve Months [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	2
Pre-Modification Outstanding Recorded Investment	116,065
Post-Modification Outstanding Recorded Investment	116,065
Troubled Debt Restructuring Subsequently Defaulted In Past Twelve Months [Member] | Commercial and Industrial Loans
Financing Receivable, Modifications [Line Items]
Number of Loans	2
Pre-Modification Outstanding Recorded Investment	116,065
Post-Modification Outstanding Recorded Investment	$ 116,065