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Net (Loss) Income per Share - Potentially Dilutive Securities Excluded from Computation of Diluted Weighted-Average Shares (Detail) - shares
3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive common stock equivalents outstanding excluded from diluted earnings per share calculation 6,065,080 1,783,224
Options [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive common stock equivalents outstanding excluded from diluted earnings per share calculation 4,888,975 1,230,724
Warrants [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive common stock equivalents outstanding excluded from diluted earnings per share calculation 1,176,105 552,500