Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
Feb. 28, 2026 |
Nov. 30, 2025 |
Aug. 31, 2025 |
Feb. 28, 2025 |
Nov. 30, 2024 |
Aug. 31, 2024 |
Feb. 28, 2026 |
Feb. 28, 2025 |
May 31, 2025 |
May 31, 2024 |
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| Operating expenses: | ||||||||||
| General and administrative | $ 5,166 | $ 5,423 | $ 7,260 | $ 10,818 | ||||||
| Research and development | 11,183 | (20,150) | (16,921) | 7,240 | ||||||
| Total operating expenses | 32,936 | (14,727) | (9,661) | 18,058 | ||||||
| Operating (loss) gain | (32,936) | 14,727 | 9,661 | (18,058) | ||||||
| Interest and other income (expense): | ||||||||||
| Interest income | 166 | 441 | 565 | 217 | ||||||
| Interest on convertible notes | (1,934) | (3,469) | (4,424) | (4,659) | ||||||
| Amortization of discount on convertible notes | (348) | (407) | (1,076) | |||||||
| Amortization of debt issuance costs | (572) | |||||||||
| Issuance costs for private placement of shares and warrants through placement agent | (1,628) | (2,819) | ||||||||
| Loss on induced conversion | (1,180) | (1,180) | (6,680) | |||||||
| Finance charges | (22) | (25) | (25) | (2,584) | ||||||
| Loss on note extinguishment | (13,374) | |||||||||
| Gain on restructuring of payables | 407 | 407 | ||||||||
| Loss on derivatives | (852) | (852) | (236) | |||||||
| Total interest and other expenses | 99 | (5,026) | (5,916) | (31,783) | ||||||
| (Loss) gain before income taxes | (32,837) | 9,701 | 3,745 | (49,841) | ||||||
| Income tax benefit | $ 0 | $ 0 | 0 | 0 | 0 | 0 | ||||
| Net (loss) income | $ (4,690) | $ (22,607) | $ (5,540) | $ (4,758) | $ (4,768) | $ 19,227 | $ (32,837) | $ 9,701 | $ 3,745 | $ (49,841) |
| Income (loss) per share: | ||||||||||
| Basic (loss) income per share | $ (0.03) | $ 0.01 | $ 0 | $ (0.05) | ||||||
| Diluted (loss) income per share | $ (0.03) | $ 0.01 | $ 0 | $ (0.05) | ||||||
| Weighted average common shares used in calculation of (loss) income per share: | ||||||||||
| Basic (in shares) | 1,262,834 | 1,194,561 | 1,205,755 | 969,509 | ||||||
| Diluted (in shares) | 1,262,834 | 1,225,538 | 1,242,922 | 969,509 | ||||||
| X | ||||||||||
- Definition Finance charges related to interest expense. No definition available.
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| X | ||||||||||
- Definition The amount of gain (loss) incurred on derivatives. No definition available.
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| X | ||||||||||
- Definition The aggregate amount of interest and other income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). No definition available.
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| X | ||||||||||
- Definition Amount of issuance costs for private placement of shares and warrants operating activities. No definition available.
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| X | ||||||||||
- Definition The amount of loss on induced conversion of debt. No definition available.
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| X | ||||||||||
- Definition Research and development (income) and or expense. No definition available.
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| X | ||||||||||
- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of amortization expense attributable to debt issuance costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total costs of sales and operating expenses for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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