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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $) | 3 Months Ended | 6 Months Ended | 9 Months Ended |  | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 23, 2014 | Nov. 24, 2013 | Feb. 23, 2014 | May 26, 2013 | Feb. 23, 2014 Building [Member] | Nov. 24, 2013 Building [Member] | Feb. 23, 2014 Machinery and Equipment [Member] | Nov. 24, 2013 Machinery and Equipment [Member] | Feb. 23, 2014 Short Term [Member] | May 26, 2013 Short Term [Member] | Feb. 23, 2014 Depreciable Assets [Member] | Feb. 23, 2014 Minimum [Member] | Feb. 23, 2014 Maximum [Member]
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Proprietary Platforms | 2 |  | 2 |  |  |  |  |  |  |  |  |  |
Certificates of Deposit, at Carrying Value (in Dollars) | $ 0 |  | $ 0 | $ 701,000 |  |  |  |  |  |  |  |  |
Marketable Securities Contractual Maturity |  |  | 1 year |  |  |  |  |  |  |  |  | 1 year | 2 years
Marketable Securities (in Dollars) | 0 |  | 0 | 251,000 |  |  |  |  | 0 | 1,300,000 |  |  |
Property, Plant and Equipment, Useful Life |  |  |  |  | 35 years | 29 years | 11 years | 7 years |  |  |  |  |
NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDepreciationExpense (in Dollars) |  |  |  |  |  |  |  |  |  |  | 438,000 |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income (in Dollars) |  |  |  |  |  |  |  |  |  |  | $ 284,000 |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Basic Earnings Per Share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 0.01 |  |
Finite-Lived Intangible Asset, Useful Life |  |  |  |  |  |  |  |  |  |  |  | 12 years | 13 years
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions | 20.10% | 20.10% |  |  |  |  |  |  |  |  |  |  |

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- Definition A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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