Fair Value Measurements (Schedule Of Fair Value And Carrying Value Of Borrowings Under Long-Term Debt) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Nov. 26, 2016	May 28, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, Carrying Value	$ 22,510	$ 25,570
Long-term debt, Fair Value	22,568	25,824
5.4 – 6.4% Notes payable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, Carrying Value	22,510	25,570
Long-term debt, Fair Value	$ 22,568	$ 25,824
Interest rate, minimum	5.40%	5.40%
Interest rate, maximum	6.40%	6.40%