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Leases - Supplemental Statement of Operations Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Lessee, Lease, Description [Line Items]
Non-cash lease expense	$ 743	$ 737	$ 1,430	$ 1,622
Cost of sales
Lessee, Lease, Description [Line Items]
Non-cash lease expense	218	192	437	393
Research and development
Lessee, Lease, Description [Line Items]
Non-cash lease expense	52	197	150	485
Sales and marketing
Lessee, Lease, Description [Line Items]
Non-cash lease expense	39	92	79	193
General and administrative
Lessee, Lease, Description [Line Items]
Non-cash lease expense	$ 434	$ 256	$ 764	$ 551

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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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Namespace Prefix:	us-gaap_
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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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