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Note 8 - Income Taxes (Details) (USD $)	3 Months Ended
	Aug. 25, 2013	Aug. 26, 2012	May 26, 2013
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	$ 2,500,000
Effective Income Tax Rate Reconciliation, Percent	34.00%	37.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Unrecognized Tax Benefits	1,000,000		1,000,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 819,000		$ 807,000

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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