Convertible Instruments and Accrued Interest - Long-term Convertible Note - April 2, 2021 Note (Detail) - USD ($) shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Feb. 28, 2023 |
Feb. 28, 2023 |
Feb. 28, 2022 |
Feb. 04, 2023 |
Apr. 23, 2021 |
Apr. 02, 2021 |
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| Debt Instrument [Line Items] | ||||||
| Loss on induced conversion | $ 2.7 | $ 18.9 | ||||
| Number of days of notice to be given for conversion of notes into common stock | 5 days | |||||
| Long-term Convertible Note - April 2, 2021 Note | ||||||
| Debt Instrument [Line Items] | ||||||
| Shares reserved | 6.0 | |||||
| Conversion of preferred stock to common stock (in shares) | 9.0 | |||||
| Loss on induced conversion | $ 2.0 | |||||
| Convertible note, aggregate principal | $ 7.8 | |||||
| Long-term Convertible Note - April 23, 2021 Note | ||||||
| Debt Instrument [Line Items] | ||||||
| Shares reserved | 6.0 | |||||
| Partitioned Notes | ||||||
| Debt Instrument [Line Items] | ||||||
| Convertible note, aggregate principal | $ 2.0 | $ 2.0 | ||||
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- Definition The amount of gain or loss on induced conversion of debt. No definition available.
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- Definition Number Of Days Of Notice To Be Given For Conversion Of Notes Into Common Stock No definition available.
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- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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