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Income Taxes (Summary Of Net Operating Loss Expiration Periods) (Details) $ in Thousands	May 25, 2019 USD ($)
Income Taxes [Abstract]
2020	$ 1,600
2021	4,200
2022	300
2023	300
2024	2,300
2025-2029	1,200
Unlimited	53,600
Net operating loss carryforwards	$ 63,500

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

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