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Long-Term Debt and Lines of Credit (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 03, 2014	Apr. 27, 2014		Jul. 28, 2013
Debt Disclosure [Abstract]
Unsecured senior term notes	$ 4,400	$ 4,400		$ 6,600
Current maturities of long-term debt	(2,200)	(2,200)	[1]	(2,200)
Long-term debt, less current maturities of long-term debt	$ 2,200	$ 2,200	[1]	$ 4,400
[1] Derived from audited financial statements.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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