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Note 18 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 28, 2022 | Feb. 28, 2021 | Nov. 30, 2018 | Nov. 30, 2021
Share-based Payment Arrangement, Expense | $ 800 | $ 700 |  |
Chief Executive Officer [Member] |  |  |  |
Related Party Transaction, Amounts of Transaction | 4 | 5 |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |
Share-based Payment Arrangement, Expense | $ 700 | 600 |  |
Restricted Stock Units (RSUs) [Member] | Chief Technology Officer [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 200,000 |  |  |
Andre Buys [Member] |  |  |  |
Related Party Transaction, Amounts of Transaction | $ 0 | 100 |  |
Due to Related Parties, Total | 0 |  |  | $ 100
Share-based Payment Arrangement, Expense | $ 0 | $ 4 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures, Total (in shares) |  |  | 150,000 |

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