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Intangible Assets - Schedule of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Thousands | Feb. 29, 2020 | Jun. 01, 2019
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Finite-Lived Intangible Assets [Line Items] |  |  |
Finite Lived Intangible Assets Gross |  | $ 4,464 | $ 4,460
Finite Lived Intangible Assets Accumulated Amortization |  | 1,892 | 1,697
Intangible assets, net |  | 2,572 | 2,763
Trade Names |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite Lived Intangible Assets Gross |  | 659 | 659
Finite Lived Intangible Assets Accumulated Amortization |  | 659 | 659
Customer Relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite Lived Intangible Assets Gross | [1] | 3,398 | 3,394
Finite Lived Intangible Assets Accumulated Amortization |  | 955 | 796
Non-compete Agreements |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite Lived Intangible Assets Gross |  | 177 | 177
Finite Lived Intangible Assets Accumulated Amortization |  | 155 | 139
Technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite Lived Intangible Assets Gross |  | 230 | 230
Finite Lived Intangible Assets Accumulated Amortization |  | $ 123 | $ 103
[1] | Change from prior periods reflect impact of foreign currency translation.

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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 + Details
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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 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)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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