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Estimated Amortization Expense Related to Finite Lived Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2014
Oct. 31, 2013
Estimated Amortization Expense Related To Finite Lived Intangible Assets [Line Items]    
2015 $ 220us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths  
2016 206us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 180us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 180us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 180us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
Thereafter 221us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Total $ 1,187us-gaap_FiniteLivedIntangibleAssetsNet $ 1,407us-gaap_FiniteLivedIntangibleAssetsNet