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Accrued Expenses (Detail) - USD ($)
$ in Thousands
Apr. 30, 2017
May 01, 2016
Payables and Accruals [Abstract]    
compensation, commissions and related benefits $ 10,188 $ 10,011
advertising rebates 468 870
interest 51  
other 1,240 1,041
accrued expenses $ 11,947 $ 11,922