Quarterly report pursuant to Section 13 or 15(d)

Capital Stock Transactions (Detail)

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Capital Stock Transactions (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Jul. 03, 2013
Dec. 28, 2011
Dec. 28, 2011
Jun. 30, 2015
May. 31, 2015
Apr. 30, 2015
Jun. 30, 2015
Jun. 30, 2014
Mar. 31, 2015
Mar. 31, 2014
Class Of Stock [Line Items]                    
Series A convertible preferred stock authorized (in shares)       2,000,000     2,000,000   2,000,000  
Series A convertible preferred stock issued (in shares)       100,000     100,000   100,000  
Series A convertible preferred stock, par value (in usd per share)       $ 0.0001     $ 0.0001   $ 0.0001  
Common stock issued upon exercise of warrants (in shares)           452,974        
Warrants exercised (in shares)           666,667        
Common stock issued upon exercise of options (in shares)       333 3,333          
Common stock cancelled (shares)                 8,131  
Total unrecognized stock base compensation expense       $ 10,781     $ 10,781 $ 5,915    
Unvested stock options, weighted average period             2 years 5 months 23 days 2 years 4 months 17 days    
Restricted Stock                    
Class Of Stock [Line Items]                    
Vesting period             3 years      
Performance and Market Condition RSAs                    
Class Of Stock [Line Items]                    
Issued (in shares)   3,170,000                
Vested (in shares)                 594,372  
Unvested (shares)                 454,164  
Time Condition RSAs                    
Class Of Stock [Line Items]                    
Issued (in shares)                 267,195 254,020
Unvested (shares)       93,980     93,980      
Compensation expense             $ 327 $ 176    
Non Vested Restricted Stock                    
Class Of Stock [Line Items]                    
Issued (in shares)             0      
Vested (in shares)             94,199      
Unvested (shares)       93,980     93,980   642,343  
Total unrecognized stock base compensation expense       $ 363     $ 363      
Unvested stock options, weighted average period             7 months 13 days      
Share-based Compensation Award, Tranche One | Performance and Market Condition RSAs                    
Class Of Stock [Line Items]                    
Vesting     33.33%              
Share-based Compensation Award, Tranche Two | Performance and Market Condition RSAs                    
Class Of Stock [Line Items]                    
Vesting 33.33%                  
Minimum | Restricted Stock                    
Class Of Stock [Line Items]                    
Vesting period             3 months      
Maximum | Restricted Stock                    
Class Of Stock [Line Items]                    
Vesting period             2 years      
Convertible Preferred Stock                    
Class Of Stock [Line Items]                    
Series A convertible preferred stock authorized (in shares)       2,000,000     2,000,000      
Series A convertible preferred stock issued (in shares)       100,000     100,000      
Series A convertible preferred stock, par value (in usd per share)       $ 0.0001     $ 0.0001      
Liquidation preference ($ per share)       $ 10     $ 10