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Commitments and Contingencies - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Dec. 31, 2014
Jun. 30, 2014
Commitments And Contingencies Disclosure [Abstract]    
Warranty period, maximum 1 year  
Liabilities for warranty costs $ 0us-gaap_StandardProductWarrantyAccrual $ 0us-gaap_StandardProductWarrantyAccrual