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Note 10 - Business Segment Reporting - Operations by Business Segment (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Aug. 28, 2016 | Aug. 30, 2015
Packaged Fresh Vegetables [Member] |  |
Net sales | $ 95,945 | $ 103,706
International sales | 17,844 | 20,805
Gross profit | 14,406 | 13,252
Net income (loss) | 2,323 | 3,260
Depreciation and amortization | 1,820 | 1,567
Investment Income, Dividend | 413 | 413
Interest income | 4 | 6
Interest expense | 550 | 467
Income Tax Expense (Benefit) | 655 | 921
Food Export [Member] |  |
Net sales | 23,339 | 22,344
International sales | 23,339 | 22,344
Gross profit | 1,028 | 1,003
Net income (loss) | 194 | 101
Depreciation and amortization | 1 | 1
Investment Income, Dividend |  |
Interest income |  |
Interest expense |  |
Income Tax Expense (Benefit) | 55 | 28
Biomaterials [Member] |  |
Net sales | 12,332 | 8,798
International sales | 7,042 | 3,127
Gross profit | 5,122 | 3,215
Net income (loss) | 1,243 | 67
Depreciation and amortization | 712 | 605
Investment Income, Dividend |  |
Interest income |  | 25
Interest expense | 103 | 35
Income Tax Expense (Benefit) | 350 | 19
Corporate Segment [Member] |  |
Net sales | 778 | 507
International sales |  |
Gross profit | 588 | 507
Net income (loss) | (448) | (476)
Depreciation and amortization | 17 | 38
Investment Income, Dividend |  |
Interest income |  |
Interest expense |  |
Income Tax Expense (Benefit) | 829 | 723
Net sales | 132,394 | 135,355
International sales | 48,225 | 46,276
Gross profit | 21,144 | 17,977
Net income (loss) | 3,312 | 2,952
Depreciation and amortization | 2,550 | 2,211
Investment Income, Dividend | 413 | 413
Interest income | 4 | 31
Interest expense | 653 | 502
Income Tax Expense (Benefit) | $ 1,889 | $ 1,691

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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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