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Note 16 - Stock-based Compensation (Details Textual) - USD ($) |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jun. 17, 2022 | Aug. 31, 2023 | Aug. 31, 2022 | Aug. 31, 2023 | Aug. 31, 2022 | Jun. 16, 2022 | Nov. 19, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | 50,000,000 |  |  |  |  | 300,000,000 |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures |  | $ (455,000) | $ 0 | $ (457,000) | $ 0 |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  | 1,300,000 | 1,700,000 | $ 3,400,000 | $ 2,400,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares) |  |  |  | 9,805 | 376,555 |  |
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount |  | 800,000 |  | $ 800,000 |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  |  |  | 1 year 1 month 6 days |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Gross |  |  |  | $ 213,686 |  |  |
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) |  |  |  | 89,234 |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures |  |  |  | $ 124,402 |  |  |
Share-Based Payment Arrangement, Option [Member] |  |  |  |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  |  |  | 1 year 9 months 18 days |  |  |
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount |  | 2,900,000 |  | $ 2,900,000 |  |  |
The 2020 Equity Incentive Plan (2020 Plan) [Member] |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | 3,800,000 |  |  |  |  |  | 2,500,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) | 1,300,000 |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  | 1,700,000 | 2,700,000 | 4,700,000 | $ 4,100,000 |  |
The 2020 Equity Incentive Plan (2020 Plan) [Member] | Share-Based Payment Arrangement, Option [Member] | Employees and Directors [Member] |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  | $ 400,000 | $ 1,700,000 | $ 1,300,000 | $ 1,700,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) |  |  |  | 249,999 | 994,750 |  |

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