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Inventories - Additional Information (Detail) - USD ($) $ in Thousands	Jul. 31, 2015	Oct. 31, 2014
Inventory Disclosure [Abstract]
Provisions to reduce inventories	$ 0	$ 0

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- References

No definition available.

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- Definition

Amount of valuation reserve for inventory.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



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-Name Accounting Standards Codification



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-Publisher FASB



-Name Accounting Standards Codification



-Topic 235



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-Publisher FASB



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