Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Schedule Of Income Taxes [Line Items]
Capital loss carryforward for tax purposes related to sale	$ 13,600,000
Operating loss carryforwards expiration years	2016
Federal statutory rate	34.00%
Increase in valuation allowance	3,131,000	667,000	4,012,000
Minimum [Member]
Schedule Of Income Taxes [Line Items]
Tax years open to examination	2009
Maximum [Member]
Schedule Of Income Taxes [Line Items]
Tax years open to examination	2013
Separate Return Limitation Year [Member]
Schedule Of Income Taxes [Line Items]
Net operating loss carryforwards	5,300,000
Federal [Member]
Schedule Of Income Taxes [Line Items]
Net operating loss carryforwards	147,000,000
Federal [Member] | Minimum [Member]
Schedule Of Income Taxes [Line Items]
Operating loss carryforwards expiration years	2019
Federal [Member] | Maximum [Member]
Schedule Of Income Taxes [Line Items]
Operating loss carryforwards expiration years	2033
State [Member]
Schedule Of Income Taxes [Line Items]
Net operating loss carryforwards	$ 69,000,000
State [Member] | Minimum [Member]
Schedule Of Income Taxes [Line Items]
Operating loss carryforwards expiration years	2014
State [Member] | Maximum [Member]
Schedule Of Income Taxes [Line Items]
Operating loss carryforwards expiration years	2033