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Long-Term Debt and Lines of Credit (Detail) - USD ($) $ in Thousands | Nov. 01, 2015 | May. 03, 2015 | Nov. 02, 2014
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Debt Disclosure [Abstract] |  |  |  |
Unsecured senior term notes |  | $ 2,200 |  | $ 2,200
Current maturities of long-term debt |  | (2,200) | [1] | (2,200)
Long-term debt, less current maturities of long-term debt | $ 0 | $ 0 |  | $ 0
[1] | Derived from audited financial statements.

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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Article 5 -Subsection 19, 20, 22 + Details
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