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Fair Value - Additional Information (Detail) (USD $)
3 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Fair Value Disclosures [Abstract]    
Write-down of Asset Held for Sale $ 220,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf $ 779,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf