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Note 8 - Investment in Joint Venture (Details Textual) - USD ($) |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Aug. 19, 2024 | Jan. 10, 2023 | May 31, 2025 | May 31, 2024 | May 31, 2025 | May 31, 2024 | Jan. 31, 2023
Royalty Income, Nonoperating |  |  | $ 800,000 |  | $ 800,000 |  |
Interest Income, Financing Receivable, before Allowance for Credit Loss |  |  | $ 100,000 | $ 100,000 | $ 100,000 | $ 100,000 |
Byrna LATAM [Member] |  |  |  |  |  |  |
Loans and Leases Receivable, Related Parties | $ 1,634,485 |  |  |  |  |  | $ 1,600,000
Loans Receivable, Basis Spread on Variable Rate |  |  |  |  |  |  | 3.00%
Loans Receivable with Fixed Rates of Interest | 1,431,112 |  |  |  |  |  |
Interest Receivable | $ 203,373 |  |  |  |  |  |
Loans, Receivable, Fixed Interest Rate. | 5.00% |  |  |  |  |  |
Byrna LATAM [Member] |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage | 51.00% | 51.00% |  |  |  |  |
Payments to Acquire Equity Method Investments |  | $ 500,000 |  |  |  |  |
Proceeds from Sale of Equity Method Investments | $ 1,000 |  |  |  |  |  |

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