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Business Segment Information (Details Textual) $ in Thousands	12 Months Ended
	Jul. 31, 2015 USD ($) Segment	Jul. 31, 2014 USD ($)	Jul. 31, 2013 USD ($)
Business segment information (Textual)
Number of reportable segments | Segment	2
Net gains related to legal matters		$ 650	$ 9,251
Telecom Platform Services [Member]
Business segment information (Textual)
Net gains related to legal matters			$ 9,300

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- Definition

Amount of gain (loss) related to settlement of legal matter.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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