Other Assets (Detail) - USD ($) $ in Thousands	Aug. 02, 2015	May. 03, 2015		Aug. 03, 2014
Other Assets Noncurrent [Line Items]
Cash surrender value - life insurance	$ 339	$ 339		$ 640
Non-compete agreement, net	960	979		1,035
Customer relationships, net	753	766		804
Other	423	461		428
Other assets	2,475	2,545	[1]	2,587
Other Noncurrent Assets [Member]
Other Assets Noncurrent [Line Items]
Cash surrender value - life insurance	$ 339	$ 339		$ 320

[1] Derived from audited financial statements.