Stock-Based Compensation (Stock Option Activity) (Detail) (2008 Incentive Plan, USD $)	12 Months Ended
Jun. 30, 2012
2008 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Beginning balance	2,605,895
Number of Options, Granted	768,350
Number of Options, Exercised	(53,950)
Number of Options, Forfeited	(266,940)
Number of Options, Ending balance	3,053,355
Number of Options, Outstanding - vested or unvested and expected to vest	2,977,909
Number of Options, Exercisable	1,668,034
Weighted Average Exercise Price, beginning balance	$ 2.63
Weighted Average Exercise Price, Granted	$ 4.93
Weighted Average Exercise Price, Exercised	$ 2.12
Weighted Average Exercise Price, Forfeited	$ 4.05
Weighted Average Exercise Price, ending balance	$ 3.10
Weighted Average Exercise Price, Outstanding - vested or unvested and expected to vest	$ 3.08
Weighted Average Exercise Price, Exercisable	$ 2.40
Weighted Average Remaining Contractual Life, Ending balance	7 years 5 months 9 days
Weighted Average Remaining Contractual Life, Outstanding - vested or unvested and expected to vest	7 years 5 months 1 day
Weighted Average Remaining Contractual Life, Exercisable	6 years 10 months 2 days
Aggregate Intrinsic Value, Ending balance	$ 915
Aggregate Intrinsic Value, Outstanding vested or unvested and expected to vest	910
Aggregate Intrinsic Value, Exercisable	$ 781

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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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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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