Equity Awards and Warrants - Expense and unrecognized (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions |
3 Months Ended | |
|---|---|---|
Aug. 31, 2021 |
Aug. 31, 2020 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Compensation expense | $ 2,597 | $ 3,692 |
| Equity instruments issued in legal settlement, shares | 1.6 | |
| Equity instruments issued in legal settlement, value | $ 1,744 | |
| Warrants for legal settlement, expiration period | 7 years | |
| Warrants for legal settlement, exercise price | $ 0.40 | |
| Stock Options And Warrants [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Compensation expense including legal settlement | $ 2,600 | |
| Compensation expense | $ 2,000 | |
| X | ||||||||||
- Definition The number of shares issued during the period in settlement of legal matters. No definition available.
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- Definition The gross value of stock issued during the period in settlement of legal matters. No definition available.
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- Definition The amount of share based compensation including warrants issued in legal settlement. No definition available.
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- Definition The exercise price per share of warrants issued in legal settlement. No definition available.
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- Definition The period of time for expiration of warrants issued in legal settlement. No definition available.
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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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- Details
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