Accrued Expenses (Detail) - USD ($) $ in Thousands	Jul. 31, 2016	May 01, 2016		Aug. 02, 2015
Payables and Accruals [Abstract]
Compensation, commissions and related benefits	$ 5,400	$ 10,011		$ 4,946
Advertising rebates	485	870		1,835
Interest	7			81
Other accrued expenses	998	1,041		869
Accrued expenses	$ 6,890	$ 11,922	[1]	$ 7,731

[1] Derived from audited financial statements.