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v3.5.0.2

Other current assets - Additional Information (Detail) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Jul. 31, 2016 | Jul. 31, 2015
Increase (Decrease) In Other Noncurrent Assets | $ 116 | $ 0
Notes Receivable [Member] |  |
Increase (Decrease) In Other Noncurrent Assets | $ 118 |

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- Definition Amount of increase (decrease) in noncurrent assets classified as other. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |