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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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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

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-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5



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