Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Detail) - Summary of significant unobservable inputs used in discounted cash flow model:	6 Months Ended	12 Months Ended
	Nov. 25, 2012	May 27, 2012
Income tax rates		25.00%
Minimum [Member]
Revenue growth rates	3.00%	3.00%
Expense growth rates	3.00%	3.00%
Income tax rates	8.00%
Discount rates	16.00%	16.00%
Maximum [Member]
Revenue growth rates	10.00%	24.00%
Expense growth rates	8.00%	18.00%
Income tax rates	25.00%
Discount rates	27.00%	27.00%