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Convertible debentures, Convertible Debentures (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Nov. 13, 2024 | Oct. 31, 2025 | Oct. 31, 2024 | Jul. 31, 2025 | Apr. 23, 2024
Convertible Debentures [Abstract] |  |  |  |  |
Balance beginning period |  | $ 375,027 |  |  |
Repayment |  | (156,764) | $ 0 |  |
Accretion |  | 230,015 | 44,565 |  |
Extinguishment |  | 17,007 | 0 |  |
Balance end period |  | 379,703 |  | $ 375,027 |
Convertible debentures, short term |  | 379,703 |  | 375,027 |
Convertible debentures |  | 13,244,818 |  | 13,089,512 |
Convertible Debentures [Member] |  |  |  |  |
Convertible Debentures [Abstract] |  |  |  |  |
Extinguishment | $ 488,957 |  |  |  |
Convertible debentures | $ 3,345,000 |  |  |  |
Related Party [Member] |  |  |  |  |
Convertible Debentures [Abstract] |  |  |  |  |
Balance beginning period |  | 375,027 |  |  |
Balance end period |  | 379,703 |  | 375,027 |
Convertible debentures, short term |  | 379,703 |  | 375,027 |
Convertible debentures, long term |  | 4,052,638 |  | 3,914,146 |
Related Party [Member] | Envviron SAS [Member] |  |  |  |  |
Convertible Debentures [Abstract] |  |  |  |  |
Balance beginning period |  | 13,089,512 | $ 881,544 | 881,544 |
Issued |  |  |  | 13,686,133 |
Fair value of embedded derivative |  |  |  | (138,250) |
Issuance discount |  |  |  | (800,000) |
Transaction costs |  |  |  | (85,000) |
Repayment |  | (345,909) |  | (448,151) |
Accretion |  | 230,015 |  | 346,424 |
Interest |  | 271,200 |  | 305,591 |
Accrued interest transferred to accrued liabilities |  |  |  | (21,129) |
Extinguishment |  |  |  | (3,982,650) |
Assumed on RTO |  |  |  | 3,345,000 |
Balance end period |  | 13,244,818 |  | 13,089,512 |
Convertible debentures, short term |  | 13,244,818 |  | 13,089,512 |
Related Party [Member] | Envviron SAS [Member] | Convertible Debentures [Member] |  |  |  |  |
Convertible Debentures [Abstract] |  |  |  |  |
Transaction costs |  |  |  | (85,000) |
Convertible debentures |  | 13,756,590 |  |  | $ 250,000
Nonrelated Party [Member] |  |  |  |  |
Convertible Debentures [Abstract] |  |  |  |  |
Convertible debentures, long term |  | $ 8,812,477 |  | $ 8,800,339 |

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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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- Definition The portion of the carrying value of long-term convertible debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. Convertible debt is a financial instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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