XML 34 R31.htm IDEA: XBRL DOCUMENT v2.4.1.9
Expected Amortization of Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Finite-Lived Intangible Assets [Line Items]  
2015 $ 856us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
2016 1,171us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2017 617us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2018 414us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
Thereafter 771xcra_FiniteLivedIntangibleAssetsAmortizationExpenseThereafter
Net Amount $ 3,829us-gaap_FiniteLivedIntangibleAssetsNet