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Significant Accounting Policies - Additional Information (Detail)
12 Months Ended
Jun. 30, 2015
USD ($)
Customer
Jun. 30, 2014
USD ($)
Customer
Jun. 30, 2013
USD ($)
Schedule Of Significant Accounting Policies [Line Items]      
Amounts charged to bad debt expense     $ 173,000
Amounts credited to bad debt expense $ 5,000 $ 54,000  
Capitalized software development costs $ 0 0 $ 0
Stock options [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Share-based compensation arrangement by share-based payment award, award vesting period 4 years    
Restricted Stock and RSU [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Share-based compensation arrangement by share-based payment award, award vesting period 2 years    
Research and Development Expense [Member] | Ministry of the Economy, Finance and Industry, France [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Tax refund receivable $ 100,000 $ 200,000  
Customer Concentration Risk [Member] | Sales Revenue, Net [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Number of customers | Customer 0    
Credit Concentration Risk [Member] | Accounts Receivable [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Number of customers | Customer 0 0  
Minimum [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Property and equipment, estimated useful lives 3 years    
Minimum [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Customer concentration risk, percentage 10.00%    
Minimum [Member] | Credit Concentration Risk [Member] | Accounts Receivable [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Customer concentration risk, percentage 10.00% 10.00%  
Maximum [Member]      
Schedule Of Significant Accounting Policies [Line Items]      
Property and equipment, estimated useful lives 5 years    
Capitalized computer software amortized period 3 years    
Percentage of tax benefits recognized 50.00%