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Accrued Expenses (Detail) (USD $)
In Thousands, unless otherwise specified
Apr. 27, 2014
Apr. 28, 2013
Payables And Accruals [Abstract]    
compensation, commissions and related benefits $ 7,388 $ 9,831
interest 71 111
other 1,722 1,887
Accrued expenses $ 9,181 $ 11,829