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Intangible Assets And Goodwill (Narrative) (Details) - USD ($) | 12 Months Ended |
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May 28, 2022 | May 29, 2021 | May 30, 2020 | Nov. 28, 2020
Finite Lived Intangible Assets [Line Items] |  |  |  |
Weighted average useful life | 5 years 8 months 12 days |  |  |
Amortization expense | $ 4,908,000 | $ 5,228,000 | $ 5,745,000 |
Goodwill impairment | $ 0 | $ 0 | $ 0 | $ 0
Customer Contracts And Relationships [Member] |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |
Weighted average useful life | 7 years 7 months 6 days |  |  |
Tradenames [Member] |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |
Weighted average useful life | 3 years |  |  |
Backlog [Member] |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |
Weighted average useful life | 1 year 4 months 24 days |  |  |
Computer Software [Member] |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |
Weighted average useful life | 3 years 3 months 18 days |  |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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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. + References No definition available. + Details
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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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