Employee Benefit Plan (Details) - 401 (K) Plan [Member] - USD ($)	12 Months Ended
Jul. 31, 2016	Jul. 31, 2015
Defined Contribution Plan Disclosure [Line Items]
Retirement savings plan maximum contribution percent	50.00%	50.00%
Retirement savings plan maximum contribution	$ 18,000	$ 18,000
Employer contribution percent	50.00%
Employer contribution amount	$ 352,000	258,000
Over Age 50 [Member]
Defined Contribution Plan Disclosure [Line Items]
Retirement savings plan maximum contribution	$ 24,000	$ 24,000
Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Employer contribution percent of employee salary	4.00%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

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- Definition

Maximum amount the employee may contribute to a defined contribution plan.

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

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