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Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jul. 31, 2017 | Jul. 31, 2016
Indefinite-lived Intangible Assets [Line Items] |  |
Beginning Balance | $ 11,218 | $ 14,388
Foreign currency translation adjustments | 108 | (786)
Zedge Spin-Off |  | (2,384)
Ending Balance | 11,326 | 11,218
Telecom Platform Services [Member] |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Beginning Balance | 11,218 | 11,181
Foreign currency translation adjustments | 108 | 37
Zedge Spin-Off |  |
Ending Balance | 11,326 | 11,218
All Other (Zedge) [Member] |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Beginning Balance |  | 3,207
Foreign currency translation adjustments |  | (823)
Zedge Spin-Off |  | (2,384)
Ending Balance |  |

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- Definition Goodwill written off related to spin off of business unit. + References No definition available. + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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