| Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
| | | August 31, | | | November 30, | |
| | | 2026 | | | 2025 | |
| Deferred revenue balance, beginning of period | | $ | 521 | | | $ | 1,808 | |
| Net additions to deferred revenue during the period | | | 32,150 | | | | 69,351 | |
| Reductions in deferred revenue for revenue recognized during the period | | | (32,467 | ) | | | (70,638 | ) |
| Deferred revenue balance, end of period | | | 204 | | | | 521 | |
| Less current portion | | | 186 | | | | 496 | |
| Deferred revenue, non-current | | $ | 18 | | | $ | 25 | |
|
| Disaggregation of Revenue [Table Text Block] |
| | | Three Months Ended | | | Nine Months Ended | |
| | | August 31, | | | August 31, | |
| Geographical Market | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| U.S./Mexico | | $ | 14,245 | | | $ | 25,236 | | | $ | 57,115 | | | $ | 74,391 | |
| South Africa | | | — | | | | 998 | | | | 1 | | | | 1,456 | |
| Europe/South America/Asia | | | 381 | | | | 1,477 | | | | 1,581 | | | | 5,656 | |
| Canada | | | 670 | | | | 468 | | | | 2,036 | | | | 1,371 | |
| Total | | $ | 15,296 | | | $ | 28,179 | | | $ | 60,733 | | | $ | 82,874 | |
| | | Three Months Ended | | | Nine Months Ended | |
| | | August 31, | | | August 31, | |
| Distribution channel | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Wholesale (dealer/distributors) | | $ | 4,200 | | | $ | 10,483 | | | $ | 19,241 | | | $ | 26,585 | |
| E-commerce (direct to consumers) | | | 11,096 | | | | 17,382 | | | | 41,546 | | | | 55,164 | |
| Royalties | | | — | | | | 314 | | | | (54 | ) | | | 1,125 | |
| Total | | $ | 15,296 | | | $ | 28,179 | | | $ | 60,733 | | | $ | 82,874 | |
| | | Three Months Ended | | | Nine Months Ended | |
| | | August 31, | | | August 31, | |
| Sales channel | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Web (DTC) | | $ | 10,025 | | | $ | 16,329 | | | $ | 38,099 | | | $ | 52,297 | |
| Retail Stores (DTC) | | | 483 | | | | 735 | | | | 1,813 | | | | 1,813 | |
| International (DTC) | | | 588 | | | | 318 | | | | 1,634 | | | | 1,054 | |
| DTC Subtotal | | $ | 11,096 | | | $ | 17,382 | | | $ | 41,546 | | | $ | 55,164 | |
| | | | | | | | | | | | | | | | | |
| Byrna Dedicated Dealers (Wholesale) | | | 3,541 | | | | 7,871 | | | | 16,534 | | | | 19,631 | |
| Law Enforcement / Schools / Pvt Security (Wholesale) | | | 124 | | | | 66 | | | | 252 | | | | 151 | |
| International (Wholesale) | | | 535 | | | | 2,546 | | | | 2,455 | | | | 6,803 | |
| Wholesale Subtotal | | $ | 4,200 | | | $ | 10,483 | | | $ | 19,241 | | | $ | 26,585 | |
| | | | | | | | | | | | | | | | | |
| Royalties | | $ | - | | | $ | 314 | | | $ | (54 | ) | | $ | 1,125 | |
| | | | | | | | | | | | | | | | | |
| Total | | $ | 15,296 | | | $ | 28,179 | | | $ | 60,733 | | | $ | 82,874 | |
| | | Three Months Ended | | | Nine Months Ended | |
| | | August 31, | | | August 31, | |
| Revenue type | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Product | | $ | 15,296 | | | $ | 27,865 | | | $ | 60,787 | | | $ | 81,749 | |
| Royalties | | | — | | | | 314 | | | | (54 | ) | | | 1,125 | |
| Total | | $ | 15,296 | | | $ | 28,179 | | | $ | 60,733 | | | $ | 82,874 | |
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