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Income Taxes - Deferred Tax Assets By Location (Details) - USD ($) $ in Thousands | May. 02, 2015 | Apr. 26, 2014
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Deferred Tax Assets By Location [Line Items] |  |
Deferred tax assets, gross | $ 18,315 | $ 21,931
International |  |
Deferred Tax Assets By Location [Line Items] |  |
Deferred tax assets, gross | $ 800 |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Asset -URI http://asc.fasb.org/extlink&oid=6510090 + Details
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