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Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Income Taxes [Line Items]    
Balance $ 0 $ 79
Lapse of statute of limitations - tax positions in prior period 0 (79)
Balance $ 0 $ 0