Equity (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Equity [Abstract]
Balance, July 31, 2016			$ 10,596
Exercise of stock options			110
Stock-based compensation			209
Stock issued for matching contributions to the 401(k) Plan			19
Comprehensive loss:
Net loss	$ (239)	$ 326	(403)	$ 1,762
Foreign currency translation adjustments	(121)	$ 266	(62)	$ 107
Total comprehensive loss			(465)
Balance, April 30, 2017	$ 10,469		$ 10,469

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount of increase (decrease) in other comprehensive income, after tax, from changes classified as other.

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Value of shares of stock issued attributable to transactions classified as other.

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Value of stock issued as a result of the exercise of stock options.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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