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Income Taxes (Narrative) (Detail)
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Jun. 30, 2012
USD ($)
Jun. 30, 2011
USD ($)
Jun. 30, 2010
USD ($)
Jun. 30, 2012
U.S. Federal
USD ($)
Jun. 30, 2012
U.S. Federal
Minimum
Jun. 30, 2012
U.S. Federal
Maximum
Jun. 30, 2012
State
USD ($)
Jun. 30, 2012
State
Operating Loss Carry Forwards Expiring 2012
USD ($)
Jun. 30, 2012
State
Operating Loss Carry Forwards Expiring 2013
USD ($)
Jun. 30, 2012
State
Operating Loss Carry Forward Expiring 2031
USD ($)
Jun. 30, 2012
Foreign
USD ($)
Jun. 30, 2012
Foreign
GBP (£)
Jun. 30, 2012
Internal Revenue Service (IRS)
Jun. 30, 2012
United Kingdom Tax Authority
Jun. 30, 2012
Australian Tax Authority
Income Tax [Line Items]                              
Statutory U.S. federal tax rate 34.00%                            
Increase in valuation allowance $ 7,500,000 $ 3,000,000                          
U.S. federal net operating loss carry forwards       46,600,000                      
Operating loss carry forwards, expiration dates         2023 2032                  
State net operating loss carry forwards             22,100,000                
State net operating loss carry forwards, subject to expiration               13,400,000 3,100,000 5,600,000          
Tax loss carry forwards, foreign                     28,100,000 18,000,000      
Foreign current income tax benefit $ (156,000) $ (105,000) $ (133,000)               $ 156,000        
Tax years subject to examination                         2002 through 2011 2006 to 2011 2004 through 2008