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Commitments and Contingencies - Additional Information (Detail) (USD $)
12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Commitments [Line Items]      
Operating lease expiration date 2017    
Operating lease rent expense $ 1,300,000 $ 1,100,000 $ 779,000
Employee contribution from salary 60.00%    
Defined contribution plans expenses 356,000 280,000 267,000
Warranty period, maximum 1 year    
Co-location Services
     
Commitments [Line Items]      
Rental expense $ 761,000 $ 633,000 $ 438,000