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Note 23 - Financial Instruments (Details Textual) | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 31, 2025 USD ($) | Aug. 31, 2024 USD ($) | Aug. 31, 2025 USD ($) | Aug. 31, 2024 USD ($) | Nov. 30, 2024 USD ($) | Aug. 19, 2024 USD ($) | Jan. 31, 2023 USD ($)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | $ 82,000 | $ 381,000 | $ 27,000 | $ 410,000 |  |  |
US Tax Rate Percentage of Fluctuation |  |  | 10.00% |  |  |  |
Byrna LATAM [Member] |  |  |  |  |  |  |
Loans and Leases Receivable, Related Parties |  |  |  |  | $ 1,700,000 | $ 1,634,485 | $ 1,600,000
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |  |  |  |  |  |
Number of Customers |  |  | 2 |  | 2 |  |
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Two Customers [Member] |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  | 32.00% |  | 36.00% |  |
SOUTH AFRICA |  |  |  |  |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | $ 100,000 | $ 400,000 | $ 100,000 | $ 400,000 |  |  |

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