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Leases - Supplemental Statement of Operations Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 28, 2021 | Feb. 29, 2020 | Feb. 28, 2021 | Feb. 29, 2020
Lessee, Lease, Description [Line Items] |  |  |  |
Non-cash lease expense | $ 794 | $ 925 | $ 2,416 | $ 2,469
Cost of sales |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Non-cash lease expense | 209 | 297 | 602 | 856
Research and development |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Non-cash lease expense | 197 | 192 | 682 | 388
Sales and marketing |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Non-cash lease expense | 111 | 100 | 304 | 298
General and administrative |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Non-cash lease expense | $ 277 | $ 336 | $ 828 | $ 927

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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 operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977 + Details
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- Details
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