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Other Operating (Losses) Gains, Net (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2015 | Jul. 31, 2014
Other Operating Gains (Losses), Net (Textual) |  |
Proceed from insurance |  | $ 571
New Jersey [Member] |  |
Other Operating Gains (Losses), Net (Textual) |  |
Proceed from insurance |  | 600
Gain on insurance claim |  | $ 600

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- Definition Gain on Insurance Settlement2 + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
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- Definition The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to investments, for example fixed assets. It excludes insurance settlements classified as operating cash flows. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585 + Details
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Balance Type: | debit
Period Type: | duration

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- Details
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