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Note 7 - Intangible Assets (Details) - Goodwill (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |  | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 27, 2012 | May 25, 2014 | May 26, 2013 | May 27, 2012 Food Products Technology [Member] | May 25, 2014 Food Products Technology [Member] | May 26, 2013 Food Products Technology [Member] | May 25, 2014 HA-based Biomaterials [Member] | May 26, 2013 HA-based Biomaterials [Member] | May 27, 2012 HA-based Biomaterials [Member] | May 29, 2011 HA-based Biomaterials [Member]
Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |
Balance | $ 36,462 | $ 49,620 | $ 49,620 | $ 22,581 | $ 35,739 | $ 35,739 | $ 13,881 | $ 13,881 | $ 13,881 | $ 13,881
Goodwill acquired during the period | 13,158 |  |  | 13,158 |  |  |  |  |  |
Balance | $ 49,620 | $ 49,620 | $ 49,620 | $ 35,739 | $ 35,739 | $ 35,739 | $ 13,881 | $ 13,881 | $ 13,881 | $ 13,881

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Details
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