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Note 20 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jun. 07, 2023 | Apr. 13, 2018 | Aug. 31, 2024 | Aug. 31, 2023 | Aug. 31, 2024 | Aug. 31, 2023 | Nov. 30, 2023 | Jan. 07, 2022
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  |  | $ 400 | $ 1,300 | $ 1,200 | $ 3,400 |  |
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 |  |  |  |  |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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