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Note 10 - Stockholders' Equity (Details Textual) (USD $)
In Billions, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Mar. 01, 2015
Mar. 01, 2015
Jul. 14, 2010
Schedule of Capitalization, Equity [Line Items]      
Treasury Stock, Shares, Acquired 0us-gaap_TreasuryStockSharesAcquired 0us-gaap_TreasuryStockSharesAcquired  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 90,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross 120,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross  
Common Stock, Capital Shares Reserved for Future Issuance 3,000,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance 3,000,000us-gaap_CommonStockCapitalSharesReservedForFutureIssuance  
Stock Repurchase Program, Authorized Amount     $ 0.01us-gaap_StockRepurchaseProgramAuthorizedAmount1
Restricted Stock Units (RSUs) [Member]      
Schedule of Capitalization, Equity [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 30,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
73,752us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember