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Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Revenue Arrangements (Details) - USD ($) $ in Thousands | 3 Months Ended
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Aug. 28, 2016 | Aug. 30, 2015
Revenue Recorded Upon Shipment [Member] |  |
Product sales | $ 105,588 | $ 110,416
Revenue Recorded Upon Acceptance in Foreign Port [Member] |  |
Product sales | 23,339 | 22,344
Revenue from Multiple Element Arrangements [Member] |  |
Product sales | 1,585 | 1,589
Revenue from License Fees, R&D Contracts and Royalties/Profit Sharing [Member] |  |
Product sales | 1,882 | 1,006
Product sales | $ 132,394 | $ 135,355

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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Details
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