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Income Taxes (Summary Of The Activity Related To Gross Unrecognized Tax Benefits) (Details) - USD ($)	12 Months Ended
	May 25, 2019	May 26, 2018
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Unrecognized tax benefits, beginning of year	$ 42,000	$ 42,000
Gross increases-tax positions in prior period
Gross decreases-tax positions in prior period
Gross increases-current period tax positions		42,000
Settlements
Lapse of statute of limitations		(42,000)
Unrecognized tax benefits, end of year	$ 42,000	$ 42,000

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Amount of unrecognized tax benefits.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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