| Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | May 31, 2021 | May 31, 2022 | May 31, 2023 | May 31, 2024 | May 31, 2025 |
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| Net revenue | - | - | - | - | - | 627 | 789 | 821 |
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| Cost of goods sold | - | - | - | 390 | 512 | 480 | 566 | 581 |
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| Gross profit | - | - | - | 123 | 117 | 147 | 223 | 241 |
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| General and administrative | - | - | - | 112 | 163 | 165 | 167 | 167 |
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| Selling | - | - | - | 27 | 35 | 35 | 37 | 56 |
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| Amortization | - | - | - | - | - | 93 | 85 | 89 |
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| Marketing and promotion | - | - | - | 18 | 31 | 31 | 42 | 37 |
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| Research and development | - | - | - | 1 | 2 | 1 | 1 | 0 |
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| Change in fair value of contingent consideration | - | -47 | - | - | -45 | 1 | -16 | - |
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| Asset Impairment Charges | - | 112 | 61 | - | 378 | 934 | - | 2,096 |
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| Other than temporary change in fair value of convertible notes receivable | - | - | - | - | - | 246 | 43 | 22 |
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| Litigation costs, net of recoveries | - | - | - | - | 17 | -1 | 8 | 17 |
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| Restructuring costs | - | - | - | - | - | 9 | 16 | 34 |
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| Transaction costs (income), net | - | - | - | - | - | - | 15 | 5 |
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| Total operating expenses | - | - | - | 255 | 727 | 1,517 | 398 | 2,523 |
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| Operating loss | - | - | - | -132 | -610 | -1,370 | -175 | -2,283 |
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| Interest expense, net | - | - | - | -28 | -28 | -14 | -36 | -30 |
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| Non-operating income (expense), net | - | - | - | -185 | 198 | -67 | -38 | 10 |
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| Loss before income taxes | - | - | - | -345 | -441 | -1,450 | -249 | -2,302 |
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| Income tax (recovery) expense | - | - | - | -9 | -7 | -7 | -27 | -121 |
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| Net loss | - | - | - | -336 | -434 | -1,443 | -222 | -2,181 |
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| Stockholders of Tilray Brands, Inc. | -68 | -321 | -271 | -336 | -434 | -1,443 | -222 | -2,181 |
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| Non-controlling interests | - | - | - | 31 | 43 | 10 | 23 | 5 |
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| Foreign currency translation gain (loss) | - | - | - | 157 | -125 | -84 | 3 | 0 |
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| Unrealized gain (loss) on convertible notes receivable | - | - | - | - | - | 75 | - | - |
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| Total other comprehensive gain (loss), net of tax | - | - | - | 153 | -197 | -8 | 3 | 0 |
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| Comprehensive loss | - | - | - | -183 | -631 | -1,451 | -219 | -2,181 |
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| Stockholders of Tilray Brands, Inc. | - | - | - | -215 | -650 | -1,479 | -242 | -2,186 |
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| Non-controlling interests | - | - | - | 31 | 19 | 27 | 23 | 5 |
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| Net loss per share - basic (in dollars per share) | - | - | - | -1.25 | -0.9 | -2.35 | -0.33 | -2.46 |
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| Net loss per share - diluted (in dollars per share) | - | - | - | -1.25 | -0.9 | -2.35 | -0.33 | -2.46 |
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