XML 88 R67.htm IDEA: XBRL DOCUMENT
v3.25.4

Income Taxes - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Oct. 31, 2025 | Oct. 31, 2024
Income Tax Contingency [Line Items] |  |
No uncertain tax positions | $ 0 | $ 0
Accrued interest related to unrecognized tax benefits | 0 | 0
Accrued penalties related to unrecognized tax benefits | 0 | $ 0
Capital losses | 2,200,000 |
SR&ED expenditures | 39,200,000 |
Federal |  |
Income Tax Contingency [Line Items] |  |
Net operating loss carryforwards | 11,700,000 |
U.S |  |
Income Tax Contingency [Line Items] |  |
Net operating loss carryforwards | $ 10,000,000 |
U.S | Earliest Tax Year |  |
Income Tax Contingency [Line Items] |  |
Investment tax credits expiration year | 2041 |
U.S | Latest Tax Year |  |
Income Tax Contingency [Line Items] |  |
Investment tax credits expiration year | 2045 |
Canadian |  |
Income Tax Contingency [Line Items] |  |
Net operating loss carryforwards | $ 214,300,000 |
Investment tax credits | $ 3,700,000 |
Canadian | Earliest Tax Year |  |
Income Tax Contingency [Line Items] |  |
Net operating loss carryforwards expiration year | 2028 |
Investment tax credits expiration year | 2026 |
Canadian | Latest Tax Year |  |
Income Tax Contingency [Line Items] |  |
Net operating loss carryforwards expiration year | 2045 |
Investment tax credits expiration year | 2045 |
Canadian | Federal |  |
Income Tax Contingency [Line Items] |  |
Net operating loss carryforwards | $ 220,500,000 |
SR&ED expenditures | $ 36,700,000 |
Canadian | Federal | Earliest Tax Year |  |
Income Tax Contingency [Line Items] |  |
Net operating loss carryforwards expiration year | 2026 |
Canadian | Federal | Latest Tax Year |  |
Income Tax Contingency [Line Items] |  |
Net operating loss carryforwards expiration year | 2045 |

X
- Definition Capital loss carryforward. + References No definition available. + Details
Name: | engn_CapitalLossCarryforward
Namespace Prefix: | engn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Investment tax credits expiration year. + References No definition available. + Details
Name: | engn_InvestmentTaxCreditsExpirationYear
Namespace Prefix: | engn_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net Operating Loss Carryforwards Expiration Year + References No definition available. + Details
Name: | engn_NetOperatingLossCarryforwardsExpirationYear
Namespace Prefix: | engn_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Scientific research and experimental development expenditures + References No definition available. + Details
Name: | engn_ScientificResearchAndExperimentalDevelopmentExpenditures
Namespace Prefix: | engn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_IncomeTaxContingencyLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount deducted from an entities' taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
Name: | us-gaap_InvestmentTaxCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
Name: | us-gaap_OperatingLossCarryforwards
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
Name: | us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15 + Details
Name: | us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of interest expense accrued for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15 + Details
Name: | us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=us-gaap_EarliestTaxYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=us-gaap_LatestTaxYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |