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Note 13 - Intangible Assets (Tables) | 9 Months Ended
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Aug. 31, 2025
Notes Tables |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  |  |  |  |  | Balance at August 31, 2025 |  |  | Balance at November 30, 2024 |
|  | Estimated Useful Lives in Years |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Patents |  |  | 10-17 |  |  | $ | 3,955 |  |  | $ | (1,170 | ) |  | $ | 2,785 |  |  | $ | 3,955 |  |  | $ | (978 | ) |  | $ | 2,977 |
Trademarks |  | Indefinite |  |  |  | 360 |  |  |  | — |  |  |  | 360 |  |  |  | 360 |  |  |  | — |  |  |  | 360 |
Customer List |  |  | 2 |  |  |  | 70 |  |  |  | (70 | ) |  |  | — |  |  |  | 70 |  |  |  | (70 | ) |  |  | — |
Federal Firearms License |  |  | 3 |  |  |  | 6 |  |  |  | (0 | ) |  |  | 6 |  |  |  | — |  |  |  | — |  |  |  | — |
Total |  |  |  |  |  | $ | 4,391 |  |  | $ | (1,240 | ) |  | $ | 3,151 |  |  | $ | 4,385 |  |  | $ | (1,048 | ) |  | $ | 3,337 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Fiscal Year Ending November 30, |
2025 (remaining three months) |  | $ | 65 |
2026 |  |  | 259 |
2027 |  |  | 259 |
2028 |  |  | 259 |
2029 |  |  | 259 |
Thereafter |  |  | 1,690 |
Total |  | $ | 2,791 |

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