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Commitments and Contingencies (Details) - USD ($) $ in Thousands		3 Months Ended
	Oct. 24, 2017	Oct. 31, 2017	Oct. 31, 2016	Sep. 30, 2017	Jul. 31, 2017
Commitments and Contingencies (Textual)
Accrued expenses		$ 39,900			$ 43,500
Purchase commitment of company		60,900
Performance bonds outstanding		15,100
Escrow deposit				$ 11,750
Cash and cash equivalents		8,600			$ 10,800
Payment for transfer of the IP Interest		6,000
Payment for settlement of claims and mutual release	$ 10,000
Stockholders, ownership percentage	22.00%
Net proceeds from sale of majority interests in New SPIP	$ 6,000	6,000
Company paid Straight Path an aggregate of cash	$ 16,000
Legal fees		$ 779	$ 199

X

- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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- Definition

Commitments and contingencies.

+ References

No definition available.

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- Definition

Loss contingency payment aggregate paid to related party.

+ References

No definition available.

+ Details

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- Definition

Loss contingency payment for assets.

+ References

No definition available.

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- Definition

Loss contingency payment for settlement and release.

+ References

No definition available.

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- Definition

Percentage of license net proceeds to be paid to related party stockholders.

+ References

No definition available.

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- Definition

In certain circumstances, the company is required to provide performance bonds in connection with its contractual commitments. Company has indemnified the surety for any expenses paid out under these performance bonds.

+ References

No definition available.

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- Definition

Related party transaction sale to related party amount.

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No definition available.

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Amount of general expenses not normally included in Other Operating Costs and Expenses.

+ 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 210.5-03.6)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

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