Note 8 - Warrants and Other Derivative Liabilities and Fair Value Measurements - Summary of All Changes in Derivatives Liabilities (Details) - USD ($) |
6 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Balance | $ 79,742,180 | $ 64,863,309 |
| Warrants recognized upon issuance of convertible instruments | 70,187,418 | |
| Loss / (gain) on revaluation | (63,617,277) | 3,106,223 |
| Loss / (gain) on exchange of warrants | 57,770,454 | |
| Reclassification to liability to issue shares upon unfinished warrant exercise on period end | (2,392,462) | (3,680,006) |
| Conversions of derivatives into common shares | (45,990,080) | |
| Conversions of warrants into common shares | (59,165,039) | |
| Balance | $ 95,700,233 | $ 5,124,487 |
| X | ||||||||||
- Definition Amount of conversion of derivatives of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
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| X | ||||||||||
- Definition Amount of conversion of warrants of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
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| X | ||||||||||
- Definition Amount of reclassifications of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
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| X | ||||||||||
- Definition Amount of recognitions of financial instrument from convertible instruments classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. No definition available.
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| X | ||||||||||
- Definition Amount of gain (loss) recognized on warrants exchanged from liability measured at fair value on recurring basis using unobservable input (level 3). No definition available.
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| X | ||||||||||
- Definition Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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