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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Aug. 30, 2015
Notes Tables |
Schedule of Effect of Significant Unobservable Inputs for Investment [TableText Block] |
|  | At August 30, 2015 |  |  | At May 31, 2015 |
Revenue growth rates |  |  |  | 4% |  |  |  |  |  | 4% |  |
Expense growth rates |  |  |  | 4% |  |  |  |  |  | 4% |  |
Income tax rates |  |  |  | 15% |  |  |  |  |  | 15% |  |
Discount rates |  |  | 15% | to | 21% |  |  |  | 15% | to | 21% |
Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets [Table Text Block] |
Impact on value of Windset investment as of August 30, 2015 |
10% increase in revenue growth rates |  | $ | 2,100 |
10% increase in expense growth rates |  | $ | (1,600 | )
10% increase in income tax rates |  | $ | — |
10% increase in discount rates |  | $ | (1,000 | )
Revenue Recognition, Multiple-deliverable Arrangements [Table Text Block] |
|  | Three months ended August 30 , 2 015 |  |  | Three months ended August 31 , 201 4 |
Recorded upon shipment |  | $ | 110,416 |  |  | $ | 106,240 |
Recorded upon acceptance in foreign port |  |  | 22,344 |  |  |  | 26,587 |
Revenue from multiple element arrangements |  |  | 1,589 |  |  |  | 575 |
Revenue from license fees, R&D contracts and royalties/profit sharing |  |  | 1,006 |  |  |  | 212 |
TOTAL |  | $ | 135,355 |  |  | $ | 133,614 |

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- Definition Tabular disclosure of the recognition of revenue arrangements under which the entity does or will perform multiple revenue-generating activities, categorized by type of arrangement. This item includes certain revenue arrangements that include software elements. This item does not include multiple-deliverable arrangements for industries that prepare disclosures under specific requirements (for instance, construction-type and production-type contracts) otherwise provided for in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 25 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51671369&loc=d3e50766-111635 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 25 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=51671369&loc=SL6750900-111635 + Details
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- Definition Tabular disclosure of a sensitivity analysis or stress test showing the hypothetical effect on the fair value of the transferor's interests in transferred financial assets (including any servicing assets or servicing liabilities) of two or more unfavorable variations from the expected levels for each key assumption that is reported, independently determined from any change in another key assumption, and a description of the objectives, methodology, and limitations of the sensitivity analysis or stress test. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=51814546&loc=d3e107314-111719 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51814546&loc=d3e107314-111719 + Details
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