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Accrued Expenses (Detail) - USD ($)
$ in Thousands
Jan. 28, 2018
Apr. 30, 2017
Jan. 29, 2017
Payables and Accruals [Abstract]      
Compensation, commissions and related benefits $ 6,288 $ 10,188 $ 9,205
Advertising rebates 482 468 118
Interest 5 51 11
Other accrued expenses 2,067 1,240 1,177
Accrued expenses $ 8,842 $ 11,947 [1] $ 10,511
[1] Derived from audited financial statements.