Note 2 - Summary of Significant Accounting Policies	3 Months Ended
May 31, 2026
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. Summary of Significant Accounting Policies Use of estimates The preparation of financial statements in conformity with US GAAP requires management to use its judgment to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting period. Actual results could differ from those estimates. Those estimates and assumptions include the going concern assessment, estimates for depreciable lives of property, plant and equipment and intangible assets, recoverability of property, plant and equipment, recoverability of equity accounted investments, assumptions made in calculating the fair value of stock-based compensation and other equity instruments, and the assessment of performance conditions for stock-based compensation awards. Net loss per share The Company computes net loss per share in accordance with FASB ASC 260, Earnings Per Share. Basic loss per share is computed by dividing the net loss applicable to common stockholders by the weighted average number of shares of common stock outstanding during the year. The Company includes common stock issuable in its calculation. Diluted loss per share is computed by dividing the net loss applicable to common stockholders by the weighted average number of common shares outstanding plus the number of additional common shares that would have been outstanding if all dilutive potential common shares had been issued, using the treasury stock method. Potential common shares are excluded from the computation if their effect is antidilutive. For the three months ended May 31, 2026 and 2025, the calculations of basic and diluted loss per share are the same because potential dilutive securities would have an antidilutive effect. As at May 31, 2026, the potentially dilutive securities consisted of 7,325,317 outstanding stock options (2025 – 5,573,138), 4,218,696 outstanding restricted stock units (2025 – 3,981,121). Recently adopted accounting pronouncements In November 2024, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2024-04, Debt—Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments, which clarifies the accounting for settlements of convertible debt instruments that occur on terms different from the original contractual conversion terms. The amendments introduce a "preexisting contract approach," requiring that, to qualify for induced conversion accounting, the inducement offer must preserve the form of consideration and provide an amount of consideration that is no less than what was issuable under the original conversion privileges. This guidance applies to convertible debt instruments with cash conversion features and to instruments that are not currently convertible but had substantive conversion features at issuance and at the time the inducement offer is accepted. The updated standard is effective for annual reporting periods beginning after December 15, 2025, including interim periods within those fiscal years. Early adoption is permitted for entities that have adopted the amendments in ASU 2020-06. The updated standard will be effective for the first quarter ending May 31, 2026. The updated standard is potentially applicable to the future settlement or conversion of its Series B Convertible Preferred Stock (“Series B CPS”), which is classified as a liability and contains a substantive conversion feature (note 10). There has been no impact of adopting the standard in the condensed consolidated financial statements. Recently issued accounting pronouncements not* yet adopted* In November 2024, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires public business entities to disclose, in interim and annual reporting periods, additional information about certain expenses in the notes to financial statements. The updated standard is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. Management is currently evaluating the impact that the updated standard will have on our financial statement disclosures. In January 2025, the Financial Accounting Standards Board (FASB) issued ASU 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date. This update clarifies the effective date of ASU 2024-03, which requires public business entities to provide disaggregated disclosures of certain income statement expenses. Specifically, ASU 2025-01 confirms that the guidance in ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and for interim periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. Management is currently evaluating the impact that the updated standard will have on our consolidated financial statement disclosures.

The preparation of financial statements in conformity with US GAAP requires management to use its judgment to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting period. Actual results could differ from those estimates. Those estimates and assumptions include the going concern assessment, estimates for depreciable lives of property, plant and equipment and intangible assets, recoverability of property, plant and equipment, recoverability of equity accounted investments, assumptions made in calculating the fair value of stock-based compensation and other equity instruments, and the assessment of performance conditions for stock-based compensation awards.

The Company computes net loss per share in accordance with FASB ASC 260, Earnings Per Share. Basic loss per share is computed by dividing the net loss applicable to common stockholders by the weighted average number of shares of common stock outstanding during the year. The Company includes common stock issuable in its calculation. Diluted loss per share is computed by dividing the net loss applicable to common stockholders by the weighted average number of common shares outstanding plus the number of additional common shares that would have been outstanding if all dilutive potential common shares had been issued, using the treasury stock method. Potential common shares are excluded from the computation if their effect is antidilutive.

For the three months ended May 31, 2026 and 2025, the calculations of basic and diluted loss per share are the same because potential dilutive securities would have an antidilutive effect. As at May 31, 2026, the potentially dilutive securities consisted of 7,325,317 outstanding stock options (2025 – 5,573,138), 4,218,696 outstanding restricted stock units (2025 – 3,981,121).

In November 2024, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2024-04, Debt—Debt with Conversion and Other Options (Subtopic 470-20): Induced Conversions of Convertible Debt Instruments, which clarifies the accounting for settlements of convertible debt instruments that occur on terms different from the original contractual conversion terms. The amendments introduce a "preexisting contract approach," requiring that, to qualify for induced conversion accounting, the inducement offer must preserve the form of consideration and provide an amount of consideration that is no less than what was issuable under the original conversion privileges. This guidance applies to convertible debt instruments with cash conversion features and to instruments that are not currently convertible but had substantive conversion features at issuance and at the time the inducement offer is accepted. The updated standard is effective for annual reporting periods beginning after December 15, 2025, including interim periods within those fiscal years. Early adoption is permitted for entities that have adopted the amendments in ASU 2020-06. The updated standard will be effective for the first quarter ending May 31, 2026. The updated standard is potentially applicable to the future settlement or conversion of its Series B Convertible Preferred Stock (“Series B CPS”), which is classified as a liability and contains a substantive conversion feature (note 10). There has been no impact of adopting the standard in the condensed consolidated financial statements.

In November 2024, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires public business entities to disclose, in interim and annual reporting periods, additional information about certain expenses in the notes to financial statements. The updated standard is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. Management is currently evaluating the impact that the updated standard will have on our financial statement disclosures.

In January 2025, the Financial Accounting Standards Board (FASB) issued ASU 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date. This update clarifies the effective date of ASU 2024-03, which requires public business entities to provide disaggregated disclosures of certain income statement expenses. Specifically, ASU 2025-01 confirms that the guidance in ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and for interim periods within annual reporting periods beginning after December 15, 2027. Early adoption is permitted. Management is currently evaluating the impact that the updated standard will have on our consolidated financial statement disclosures.