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Intangible Assets And Goodwill (Summary Of Intangible Assets And Related Accumulated Amortization) (Details) - USD ($) $ in Thousands	9 Months Ended
	Feb. 22, 2020	May 25, 2019
Finite-Lived Intangible Assets [Line Items]
Gross	$ 31,668	$ 20,581
Accumulated Amortization	(10,045)	(5,992)
Net	21,623	14,589
Customer Contracts And Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross	23,738	14,495
Accumulated Amortization	(5,780)	(3,439)
Net	$ 17,958	11,056
Customer Contracts And Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	3 years
Customer Contracts And Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	8 years
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Gross	$ 4,916	4,407
Accumulated Amortization	(2,399)	(1,563)
Net	$ 2,517	2,844
Tradenames [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	3 years
Tradenames [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	10 years
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	17 months
Gross	$ 1,210
Accumulated Amortization	(468)
Net	$ 742
Consultant List [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	3 years
Gross	$ 757	783
Accumulated Amortization	(642)	(462)
Net	$ 115	321
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	3 years
Gross	$ 866	896
Accumulated Amortization	(733)	(528)
Net	$ 133	$ 368
Computer Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives	2 years
Gross	$ 181
Accumulated Amortization	(23)
Net	$ 158

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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-Topic 350
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
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