Aggregate amount of base rental payments.

No definition available.

Name:	engn_AggregateAmountOfBaseRentalPayments
Namespace Prefix:	engn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Area of space.

+ References

No definition available.

+ Details

Name:	engn_AreaOfSpace
Namespace Prefix:	engn_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Initial annual base rent per square foot.

+ References

No definition available.

+ Details

Name:	engn_InitialAnnualBaseRentPerSquareFoot
Namespace Prefix:	engn_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	duration

- Definition

Lease expiration month and year.

+ References

No definition available.

+ Details

Name:	engn_LeaseExpirationMonthAndYear
Namespace Prefix:	engn_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Operating lease commencement period.

+ References

No definition available.

+ Details

Name:	engn_OperatingLeaseCommencementPeriod
Namespace Prefix:	engn_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of increase in annual base rent.

+ References

No definition available.

+ Details

Name:	engn_PercentageOfIncreaseInAnnualBaseRent
Namespace Prefix:	engn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date which lease or group of leases is set to expire, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

Name:	us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Indicates (true false) whether lessee has option to extend operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

Name:	us-gaap_LesseeOperatingLeaseExistenceOfOptionToExtend
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

Name:	us-gaap_OperatingLeaseLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

+ Details

Name:	us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=engn_OfficeSpaceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=engn_NewLaboratoryAndOfficeSpaceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Leases - Additional Information (Details) $ in Thousands	Jun. 04, 2025 USD ($) ft²	Jan. 01, 2024 USD ($) ft²	Dec. 29, 2022 USD ($) ft² $ / ft²	Jul. 31, 2025 USD ($)	Oct. 31, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease right of use assets				$ 7,969	$ 1,741
Operating lease liabilities				$ 8,259
Office Space
Lessee, Lease, Description [Line Items]
Rentable square feet \| ft²	26,335	6,450
Lease expiration date		Dec. 30, 2026
Operating lease right of use assets	$ 6,500	$ 400
Operating lease liabilities	$ 6,400	$ 400
Lease expiration month and year	2030-11
Operating lease, option to extend		false
Aggregate amount of base rental payments	$ 10,600	$ 500
New Laboratory and Office Space
Lessee, Lease, Description [Line Items]
Rentable square feet \| ft²			10,620
Operating lease commencement period			2023-11
Operating lease initial term			10 years
Operating lease right of use assets			$ 1,400
Operating lease liabilities			$ 1,400
Initial annual base rent \| $ / ft²			36.5
Percentage of increase in annual base rent			2.00%