Stockholders' Equity - Summary of Options Vested and Exercisable (Detail) (USD $)	12 Months Ended
Jun. 30, 2012
Number of Shares
Options outstanding	2,738,250
Fully vested and expected to vest options	2,623,894
Options exercisable	1,624,900
Weighted Average Exercise Price
Options outstanding	$ 1.98
Fully vested and expected to vest options	$ 1.89
Options exercisable	$ 0.99
Aggregate Intrinsic Value
Options outstanding	$ 9,660,787
Fully vested and expected to vest options	9,482,200
Options exercisable	$ 7,251,533
Weighted Average Remaining Contractual Term
Options outstanding	6 years 4 months 21 days
Fully vested and expected to vest options	6 years 3 months 11 days
Options exercisable	4 years 10 months 28 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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