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Goodwill and Intangibles - Estimated Future Amortization Expense Related to Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Feb. 28, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
2015 (remaining) $ 29us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
2016 118us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2017 118us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2018 97us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2019 0us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Customer relationships, Net Carrying Amount $ 362us-gaap_FiniteLivedIntangibleAssetsNet