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Future Amortization Expense (Detail) (USD $)
Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]  
October 1, 2014 to March 31, 2015 $ 255,000
2016 326,000
2017 259,000
2018 192,000
2019 125,000
Thereafter $ 46,000