Significant Accounting Policies (Policies)	9 Months Ended
Feb. 28, 2026
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Basis of consolidation Subsidiaries are entities controlled by the Company. Control exists when the Company either has a controlling voting interest or is the primary beneficiary of a variable interest entity. The financial statements of all subsidiaries are included in the Financial Statements from the date that control commences until the date that control ceases. All intercompany balances and transactions have been eliminated on consolidation. A complete list of our subsidiaries that existed as of our most recent fiscal year end is included in the Annual Report.
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]	Restricted cash We classify cash that is legally or contractually restricted as to withdrawal or usage as restricted cash. As of February 28, 2026, the Company reported $44,885 of restricted cash related to the funds held in escrow in connection with the acquisition of BrewDog plc (“BrewDog”), which was completed on March 2, 2026. See Note 26 (Subsequent Events).
Reverse Stock Split [Policy Text Block]	Reverse stock split Effective December 2, 2025, the Company implemented a reverse stock split of its outstanding shares of Common Stock, at a ratio of one-for-ten (the “Reverse Stock Split”). No fractional shares were issued in connection with the Reverse Stock Split. Fractional shares resulting from the Reverse Stock Split were rounded down to the nearest whole share and stockholders received cash in lieu of any fractional shares that were created by the Reverse Stock Split. Each stockholder's percentage ownership interest in the Company and proportional voting power remained unchanged as a result of the Reverse Stock Split, except for adjustments that resulted from rounding fractional shares down to whole shares. All issued and outstanding Common Stock, per share amounts, and outstanding equity instruments and awards exercisable into Common Stock contained in the condensed interim consolidated financial statements of the Company and notes thereto have been retroactively adjusted to reflect the Reverse Stock Split for all prior periods presented.
Earnings Per Share, Policy [Policy Text Block]	Earnings (loss) per share Basic earnings (loss) per share is computed by dividing reported net loss attributable to stockholders of Tilray Brands, Inc. by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share is computed by dividing reported net loss attributable to stockholders of Tilray Brands, Inc. by the sum of the weighted average number of common shares and the number of dilutive potential common share equivalents outstanding during the period. Potential dilutive common share equivalents consist of the incremental common shares issuable upon the exercise of vested share options, warrants, and RSUs and the incremental shares issuable upon conversion of the convertible debentures and similar instruments. Shares of Common Stock outstanding under the share lending arrangement entered into in conjunction with the TLRY 27 Notes, see Note 12 (Convertible debentures payable) are excluded from the calculation of basic and diluted earnings per share because the borrower of the shares is required under the share lending arrangement to refund any dividends paid on the shares lent. In computing diluted earnings (loss) per share, common share equivalents are not considered in periods in which a net loss attributable to Tilray shareholders is reported, as the inclusion of the common share equivalents would be anti-dilutive. For the three months ended February 28, 2026 and February 28, 2025, the dilutive potential common share equivalents outstanding consisted of the following: 7,626,712 and 2,189,612 common shares from RSUs, 303,199 and 303,256 common shares from share options, nil and 620,900 common shares for warrants and 3,766,478 and 4,873,823 common shares for convertible debentures, respectively. Current and prior year share amounts have been retrospectively adjusted to reflect the Reverse Stock Split, which became effective on December 2, 2025.
Digital Assets [Policy Text Block]	Digital Assets In December 2023, FASB issued ASU 2023-08, Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets. ASU 2023-08 requires certain crypto assets to be measured at fair value separately on the balance sheet with gains and losses from changes in the fair value reported as unrealized gains or losses in the consolidated statement of income (loss) and comprehensive income (loss) each reporting period. ASU 2023-08 also enhances the other intangible asset disclosure requirements by requiring the name, cost basis, fair value, and number of units for each significant crypto asset holding. In conjunction with the acquisition of digital assets during the fiscal quarter ended August 31, 2025, the Company adopted and applied ASU-2023-08 henceforth. The Company's digital assets are initially recorded at cost, and are subsequently measured at fair value as of each reporting period. The Company determines the fair value of its digital assets in accordance with ASC 820, Fair Value Measurement, based on quoted prices in its principal market for Bitcoin (Level 1). Changes in fair value are recognized as incurred in the Company's consolidated statement of income (loss) and comprehensive income (loss), as “Unrealized (gain) loss on digital assets,” within non-operating (income) and expenses, net.
New Accounting Pronouncements, Policy [Policy Text Block]	New accounting pronouncements not yet adopted In August 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-05, Business Combination - Joint Venture Formations (Subtopic 805-60) Recognition and Initial Measurement (“ASU 2023-05”), which is intended to address the accounting for contributions made to a joint venture. ASU 2023-05 is effective for the Company beginning June 1, 2026. This update will be applied prospectively and the Company is currently evaluating the effect of adopting this ASU. In October 2023, the FASB issued ASU 2023-06, Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative, which amends the disclosure or presentation requirements related to various subtopics in the FASB Accounting Standards Codification (the “Codification”). The effective date for each amendment will be the date on which the SEC’s removal of that related disclosure from Regulation S-X or Regulation S-K becomes effective, with early adoption prohibited. If by June 30, 2027, the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. The Company is currently evaluating the effect of adopting this ASU. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) Improvements to Income Tax Disclosures, which requires public entities to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold on an annual basis. ASU 2023-09 is effective for the Company beginning with its fiscal year ended May 31, 2026 and will be disclosed in the Financial Statements reported in our Annual Report on Form 10-K filed with the SEC for such period. The Company is in the process of evaluating the impact of the financial statement disclosure requirement. In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires disaggregated disclosure of income statement expenses for public business entities. ASU 2024-03 is effective for the Company beginning fiscal year ended May 31, 2028 and will be disclosed in the Annual Report on Form 10-K for such period. The Company is currently evaluating the effect of adopting this ASU. New accounting pronouncements recently adopted In November 2024, the FASB issued ASU 2024-04, Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments, which seeks to clarify the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as an induced conversion. The Company adopted ASU 2024-04 beginning June 1, 2025, however, it did not have any impact on our unaudited interim consolidated financial statements.

Significant Accounting Policies (Policies)

9 Months Ended

Feb. 28, 2026

Consolidation, Policy [Policy Text Block]

Basis of consolidation

Subsidiaries are entities controlled by the Company. Control exists when the Company either has a controlling voting interest or is the primary beneficiary of a variable interest entity. The financial statements of all subsidiaries are included in the Financial Statements from the date that control commences until the date that control ceases. All intercompany balances and transactions have been eliminated on consolidation. A complete list of our subsidiaries that existed as of our most recent fiscal year end is included in the Annual Report.

Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]

Restricted cash

We classify cash that is legally or contractually restricted as to withdrawal or usage as restricted cash. As of February 28, 2026, the Company reported $44,885 of restricted cash related to the funds held in escrow in connection with the acquisition of BrewDog plc (“BrewDog”), which was completed on March 2, 2026. See Note 26 (Subsequent Events).

Reverse Stock Split [Policy Text Block]

Reverse stock split

Effective December 2, 2025, the Company implemented a reverse stock split of its outstanding shares of Common Stock, at a ratio of one-for-ten (the “Reverse Stock Split”).

No fractional shares were issued in connection with the Reverse Stock Split. Fractional shares resulting from the Reverse Stock Split were rounded down to the nearest whole share and stockholders received cash in lieu of any fractional shares that were created by the Reverse Stock Split. Each stockholder's percentage ownership interest in the Company and proportional voting power remained unchanged as a result of the Reverse Stock Split, except for adjustments that resulted from rounding fractional shares down to whole shares.

All issued and outstanding Common Stock, per share amounts, and outstanding equity instruments and awards exercisable into Common Stock contained in the condensed interim consolidated financial statements of the Company and notes thereto have been retroactively adjusted to reflect the Reverse Stock Split for all prior periods presented.

Earnings Per Share, Policy [Policy Text Block]

Earnings (loss) per share

Basic earnings (loss) per share is computed by dividing reported net loss attributable to stockholders of Tilray Brands, Inc. by the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share is computed by dividing reported net loss attributable to stockholders of Tilray Brands, Inc. by the sum of the weighted average number of common shares and the number of dilutive potential common share equivalents outstanding during the period. Potential dilutive common share equivalents consist of the incremental common shares issuable upon the exercise of vested share options, warrants, and RSUs and the incremental shares issuable upon conversion of the convertible debentures and similar instruments. Shares of Common Stock outstanding under the share lending arrangement entered into in conjunction with the TLRY 27 Notes, see Note 12 (Convertible debentures payable) are excluded from the calculation of basic and diluted earnings per share because the borrower of the shares is required under the share lending arrangement to refund any dividends paid on the shares lent.

In computing diluted earnings (loss) per share, common share equivalents are not considered in periods in which a net loss attributable to Tilray shareholders is reported, as the inclusion of the common share equivalents would be anti-dilutive. For the three months ended February 28, 2026 and February 28, 2025, the dilutive potential common share equivalents outstanding consisted of the following: 7,626,712 and 2,189,612 common shares from RSUs, 303,199 and 303,256 common shares from share options, nil and 620,900 common shares for warrants and 3,766,478 and 4,873,823 common shares for convertible debentures, respectively. Current and prior year share amounts have been retrospectively adjusted to reflect the Reverse Stock Split, which became effective on December 2, 2025.

Digital Assets [Policy Text Block]

Digital Assets

In December 2023, FASB issued ASU 2023-08, Intangibles—Goodwill and Other—Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets. ASU 2023-08 requires certain crypto assets to be measured at fair value separately on the balance sheet with gains and losses from changes in the fair value reported as unrealized gains or losses in the consolidated statement of income (loss) and comprehensive income (loss) each reporting period. ASU 2023-08 also enhances the other intangible asset disclosure requirements by requiring the name, cost basis, fair value, and number of units for each significant crypto asset holding. In conjunction with the acquisition of digital assets during the fiscal quarter ended August 31, 2025, the Company adopted and applied ASU-2023-08 henceforth.

The Company's digital assets are initially recorded at cost, and are subsequently measured at fair value as of each reporting period. The Company determines the fair value of its digital assets in accordance with ASC 820, Fair Value Measurement, based on quoted prices in its principal market for Bitcoin (Level 1). Changes in fair value are recognized as incurred in the Company's consolidated statement of income (loss) and comprehensive income (loss), as “Unrealized (gain) loss on digital assets,” within non-operating (income) and expenses, net.

New Accounting Pronouncements, Policy [Policy Text Block]

New accounting pronouncements not yet adopted

In August 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-05, Business Combination - Joint Venture Formations (Subtopic 805-60) Recognition and Initial Measurement (“ASU 2023-05”), which is intended to address the accounting for contributions made to a joint venture. ASU 2023-05 is effective for the Company beginning June 1, 2026. This update will be applied prospectively and the Company is currently evaluating the effect of adopting this ASU.

In October 2023, the FASB issued ASU 2023-06, Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative, which amends the disclosure or presentation requirements related to various subtopics in the FASB Accounting Standards Codification (the “Codification”). The effective date for each amendment will be the date on which the SEC’s removal of that related disclosure from Regulation S-X or Regulation S-K becomes effective, with early adoption prohibited. If by June 30, 2027, the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. The Company is currently evaluating the effect of adopting this ASU.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) Improvements to Income Tax Disclosures, which requires public entities to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold on an annual basis. ASU 2023-09 is effective for the Company beginning with its fiscal year ended May 31, 2026 and will be disclosed in the Financial Statements reported in our Annual Report on Form 10-K filed with the SEC for such period. The Company is in the process of evaluating the impact of the financial statement disclosure requirement.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires disaggregated disclosure of income statement expenses for public business entities. ASU 2024-03 is effective for the Company beginning fiscal year ended May 31, 2028 and will be disclosed in the Annual Report on Form 10-K for such period. The Company is currently evaluating the effect of adopting this ASU.

New accounting pronouncements recently adopted

In November 2024, the FASB issued ASU 2024-04, Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments, which seeks to clarify the requirements for determining whether certain settlements of convertible debt instruments should be accounted for as an induced conversion. The Company adopted ASU 2024-04 beginning June 1, 2025, however, it did not have any impact on our unaudited interim consolidated financial statements.