Stock-Based Compensation (Details) (Stock Option [Member], USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Jul. 31, 2014	Jul. 31, 2013
Stock Option [Member]
Stock Options
Stock options outstanding, Beginning balance
Stock options, Granted	32,155
Stock options, Exercised	(3,065)
Stock options, Cancelled/Forfeited	(2,542)
Stock options outstanding, Ending balance	26,548
Stock options, Vested and expected to vest	26,548
Stock options, Exercisable	20,835
Weighted- average Exercise Price
Weighted- average exercise price outstanding, Beginning balance
Weighted- average exercise price outstanding, Granted	$ 5.67
Weighted- average exercise price outstanding, Exercised	$ 5.67
Weighted- average exercise price outstanding, Cancelled/Forfeited	$ 5.67
Weighted- average exercise price outstanding, Ending balance	$ 5.67
Weighted- average exercise price outstanding, Vested and expected to vest	$ 5.67
Weighted- average exercise price outstanding, Exercisable	$ 5.67
Weighted- average Remaining Contractual Term (in years)
Weighted- average remaining contractual term, Outstanding	5 years 8 months 12 days
Weighted- average remaining contractual term, Vested and expected to vest	5 years 8 months 12 days
Weighted- average remaining contractual term, Exercisable	5 years
Aggregate Intrinsic Value
Aggregate intrinsic value, Outstanding	$ 112
Aggregate intrinsic value, Vested and expected to vest	112
Aggregate intrinsic value, Exercisable	$ 88

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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 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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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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