Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Significant Unobservable Inputs Used in Discounted Cash Flow Models (Details)	12 Months Ended
May 28, 2017	May 29, 2016
Revenue growth rates	4.00%	4.00%
Expense growth rates	4.00%	4.00%
Income tax rates	15.00%	15.00%
Discount rates	12.00%	12.50%

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration