Note 19 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|
Jun. 07, 2023 |
Apr. 13, 2018 |
May 31, 2024 |
May 31, 2023 |
May 31, 2024 |
May 31, 2023 |
Nov. 30, 2023 |
Jan. 07, 2022 |
|
| Restricted Stock Units (RSUs) [Member] | ||||||||
| Share-Based Payment Arrangement, Expense | $ 400 | $ 1,000 | $ 900 | $ 2,000 | ||||
| Restricted Stock Units (RSUs) [Member] | Chief Technology Officer [Member] | ||||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) | 200,000 | |||||||
| Share-Based Compensation Arrangement by Share-Based Payment Award, Accelerated Vesting, Number (in shares) | 200,000 | 200,000 | ||||||
| Share-Based Payment Arrangement, Expense | $ 1,000 | |||||||
| Fintail Projectiles [Member] | ||||||||
| Initial Royalty, Percentage of Net Price | 4.00% | |||||||
| Andre Buys [Member] | ||||||||
| Other Commitment, to be Paid, Year One | $ 30 | |||||||
| X | ||||||||||
- Definition Royalty percentage of agreed upon net price for the first year of agreement. No definition available.
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| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). No definition available.
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| X | ||||||||||
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of shares for which recognition of cost was accelerated for award under share-based payment arrangement. No definition available.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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