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Income Taxes - Reconciliation of Income Taxes (Detail)
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Effective Income Tax Rate Reconciliation, Percent [Abstract]    
Benefit at federal statutory rate (34.00%) (34.00%)
State, net of federal income tax benefit (2.79%) (2.89%)
Stock-based compensation 5.51% 1.84%
Change in valuation allowance 30.95% 22.29%
Other 0.03% 0.03%
Effective tax rate (0.30%) (12.73%)