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Note 7 - Intangible Assets (Tables) | 12 Months Ended
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May 26, 2013
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill [Table Text Block] |
|  | Food Products Technology |  |  | Corporate |  |  | Hyaluronan- based Biomaterials |  |  | Total |
Balance as of May 30, 2010 |  | $ | 22,581 |  |  | $ | 4,780 |  |  | $ | 13,793 |  |  | $ | 41,154 |
Goodwill acquired/reclassified during the period |  |  | — |  |  |  | — |  |  |  | 88 |  |  |  | 88 |
Goodwill impaired during the period |  |  | — |  |  |  | (4,780 | ) |  |  | — |  |  |  | (4,780 | )
Balance as of May 29, 2011 |  |  | 22,581 |  |  |  | — |  |  |  | 13,881 |  |  |  | 36,462 |
Goodwill acquired during the period |  |  | 13,158 |  |  |  | — |  |  |  | — |  |  |  | 13,158 |
Balance as of May 27, 2012 |  |  | 35,739 |  |  |  | — |  |  |  | 13,881 |  |  |  | 49,620 |
Goodwill acquired during the period |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Balance as of May 26, 2013 |  | $ | 35,739 |  |  | $ | — |  |  | $ | 13,881 |  |  | $ | 49,620 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | Trademarks & Trade names |  |  | Customer Relationships |  |  | Total |
Balance as of May 30, 2010 |  |  | 12,428 |  |  |  | 3,674 |  |  |  | 16,102 |
Amortization expense |  |  | — |  |  |  | (308 | ) |  |  | (308 | )
Balance as of May 29, 2011 |  |  | 12,428 |  |  |  | 3,366 |  |  |  | 15,794 |
Acquired during the period |  |  | 36,000 |  |  |  | 7,500 |  |  |  | 43,500 |
Amortization expense |  |  | — |  |  |  | (309 | ) |  |  | (309 | )
Balance as of May 27, 2012 |  |  | 48,428 |  |  |  | 10,557 |  |  |  | 58,985 |
Amortization expense |  |  | — |  |  |  | (951 | ) |  |  | (951 | )
Balance as of May 26, 2013 |  | $ | 48,428 |  |  | $ | 9,606 |  |  | $ | 58,034 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 Reference 2: 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=14024403&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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