Sale of Interest in Fabrix Systems Ltd. (Details Textual) - USD ($) $ in Thousands		3 Months Ended
Oct. 08, 2014	Oct. 31, 2015	Oct. 31, 2014
Sale of Interest in Fabrix Systems Ltd (Textual)
Gain on sale of interest in Fabrix Systems Ltd.			$ 75,145
Cash received from divestiture of interest in consolidated subsidiaries parent only portion		$ 4,769	36,039
Fabrix Subsidiary [Member]
Sale of Interest in Fabrix Systems Ltd (Textual)
Common stock sold to Ericsson	$ 95,000
Sale of stock to Ericsson in percentage	100.00%
Company owns in Fabrix in percentage	78.00%
Escrow deposit	$ 13,000
Escrow deposit disbursement		6,500
Gain on sale of interest in Fabrix Systems Ltd.		76,900	$ 75,100
Proceeds from divestiture of interest in consolidated subsidiaries	$ 68,100
Cash received from divestiture of interest in consolidated subsidiaries parent only portion		64,400
Other receivables		$ 3,700

It represent cash received from divestiture of interest in consolidated subsidiaries parent only portion.

No definition available.

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- Definition

Escrow deposit disbursement.

+ References

No definition available.

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- Definition

Minority interest combined ownership percentage by parent and non controlling interests.

+ References

No definition available.

+ Details

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- Definition

The cash inflow associated with divestiture of interest in consolidated subsidiaries parent only portion.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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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 gain (loss) on sale or disposal of equity in securities of subsidiaries.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (13)(g)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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- Definition

Carrying amounts due as of the balance sheet date from parties or arising from transactions not otherwise specified in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company before stock transaction.

+ References

No definition available.

+ Details

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