Equity Awards and Warrants - Expense and unrecognized (Details) - USD ($) $ in Thousands, shares in Millions |
12 Months Ended | ||
|---|---|---|---|
May 31, 2023 |
May 31, 2022 |
Mar. 31, 2023 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Compensation expense | $ 4,275 | $ 6,239 | |
| Common stock warrants to purchase shares | 71.1 | ||
| Stock Options And Warrants [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Vested during the period, grant date fair value | 4,900 | 3,900 | |
| Unrecognized compensation expense | $ 3,000 | ||
| Weighted average period over which unrecognized compensation expense is expected to be recognized | 1 year 1 month 6 days | ||
| Equity Instruments | General and Administrative Expenses | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Compensation expense | $ 4,300 | $ 6,200 | |
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- Definition The grant date fair value of all share based compensation awards that vested during the period. No definition available.
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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