Stockholders' Equity - Summary of Option Vested and Exercisable (Detail) (USD $)	12 Months Ended
Jun. 30, 2013
Number of Shares
Options outstanding	2,271,309
Fully vested and expected to vest options	2,189,735
Options exercisable	1,487,794
Weighted Average Exercise Price
Options outstanding	$ 2.72
Fully vested and expected to vest options	$ 2.61
Options exercisable	$ 1.47
Aggregate Intrinsic Value
Options outstanding	$ 15,661,784
Fully vested and expected to vest options	15,347,467
Options exercisable	$ 12,122,302
Weighted Average Remaining Contractual Term
Options outstanding	6 years 1 month 24 days
Fully vested and expected to vest options	6 years 18 days
Options exercisable	4 years 11 months 16 days

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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