Related Party Transactions (Details) - USD ($)	12 Months Ended
Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Related Party Transactions (Textual)
Legal fees	$ 207,000
Law firm owned accounts payable	0
IDT [Member]
Related Party Transactions (Textual)
Legal accrued expense			$ 513,481
Law firm [Member]
Related Party Transactions (Textual)
Legal fees	1,406,000	$ 596,000	$ 420,000
Law firm owned accounts payable	29,000	25,000
Legal accrued expense	$ 900,000	$ 65,000

No definition available.

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

No definition available.

+ Details

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- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

+ Details

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- Details

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