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Income Taxes - Reconciliation of Income Taxes (Detail)
9 Months Ended 12 Months Ended
Mar. 31, 2015
Jun. 30, 2014
Jun. 30, 2013
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Benefit at federal statutory rate (34.00%) (34.00%) (34.00%)
State, net of federal income tax benefit (2.89%) (2.89%) (2.85%)
Stock-based compensation 1.79% 1.84% 2.31%
Change in valuation allowance 34.65% 22.29% 10.26%
Other 0.03% 0.03% 0.00%
Effective tax rate (0.42%) (12.73%) (24.28%)