Income Taxes (Summary Of The Activity Related To Gross Unrecognized Tax Benefits) (Details) - USD ($)	12 Months Ended
	May 30, 2020	May 25, 2019
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Unrecognized tax benefits, beginning of year	$ 42,000	$ 42,000
Gross decreases-tax positions in prior period	(42,000)
Gross increases-current period tax positions	848,000
Unrecognized tax benefits, end of year	$ 848,000	$ 42,000