Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.3.1.900
Subsequent Events - Additional Information (Detail) - USD ($)
 9 Months Ended
Apr. 13, 2016
Feb. 29, 2016
Jun. 30, 2016
Mar. 18, 2016
May. 31, 2015
Apr. 30, 2010
Subsequent Event [Line Items]            
Common stock, shares authorized   200,000,000     200,000,000 100,000,000
Accrued license fees   $ 930,000     $ 930,000  
Payment for litigation settlement   $ 0        
Scenario, Forecast            
Subsequent Event [Line Items]            
Accrued license fees     $ 930,000      
Subsequent Event            
Subsequent Event [Line Items]            
Payment for litigation settlement $ 0          
Subsequent Event | Before Amendment            
Subsequent Event [Line Items]            
Common stock, shares authorized       200,000,000    
Subsequent Event | After amendment            
Subsequent Event [Line Items]            
Common stock, shares authorized       250,000,000    
Subsequent Event | 2012 Equity Incentive Plan | Before Amendment            
Subsequent Event [Line Items]            
Shares available for future issuance       5,000,000    
Subsequent Event | 2012 Equity Incentive Plan | After amendment            
Subsequent Event [Line Items]            
Shares available for future issuance       7,000,000