Area of leased space.

No definition available.

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Namespace Prefix:	inzy_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Lessee operating lease commenced month and year.

+ References

No definition available.

+ Details

Name:	inzy_LesseeOperatingLeaseCommencedMonthAndYear
Namespace Prefix:	inzy_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee operating lease expiration month and year.

+ References

No definition available.

+ Details

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Namespace Prefix:	inzy_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee operating lease expiration year.

+ References

No definition available.

+ Details

Name:	inzy_LesseeOperatingLeaseExpirationYear
Namespace Prefix:	inzy_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee operating lease lease not yet commenced commencement year.

+ References

No definition available.

+ Details

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Namespace Prefix:	inzy_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Lessee operating lease lease not yet commenced expiration year.

+ References

No definition available.

+ Details

Name:	inzy_LesseeOperatingLeaseLeaseNotYetCommencedExpirationYear
Namespace Prefix:	inzy_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Area of land subject to a ground lease.

+ References

No definition available.

+ Details

Name:	us-gaap_LandSubjectToGroundLeases
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

Name:	us-gaap_LegalFees
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

No definition available.

+ 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980

+ Details

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

- Definition

Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

+ References

+ Details

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

- Definition

Term of lessee's operating lease renewal, 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980

+ Details

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

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977

+ Details

Name:	us-gaap_OperatingLeaseExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8,17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=inzy_RestrictedCashMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	srt_StatementGeographicalAxis=stpr_MA
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=inzy_LaboratorySpaceMember
Namespace Prefix:
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Period Type:

Commitments and Contingencies - Additional Information (Details)	1 Months Ended				3 Months Ended		6 Months Ended		12 Months Ended
	May 31, 2020 ft²	Dec. 31, 2019 USD ($) ft²	Jul. 31, 2018 ft²	Mar. 31, 2018 ft²	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2018
Lessee Lease Description [Line Items]
Rent expense					$ 117,000	$ 101,000	$ 255,000	$ 202,000
Costs related to legal proceedings					0	$ 0	0	$ 0
Prepaid Expenses and Other Current Assets
Lessee Lease Description [Line Items]
Security deposits		$ 34,000			34,000		34,000
Restricted Cash \| Letter of Credit
Lessee Lease Description [Line Items]
Security deposits		$ 130,000			$ 130,000		$ 130,000
Office Space \| Boston, Massachusetts
Lessee Lease Description [Line Items]
Area of leased space \| ft²		8,499		2,605
Lessee operating lease commenced month and year		2020-07		2018-06
Lessee operating lease expiration month and year				2020-04
Lessee operating lease expiration year									2025
Lessee, Operating Lease, Existence of Option to Extend [true false]		true
Lessee operating lease option to extend description							The Company has the option to extend the term of this lease for a term of five years.
Operating lease renewal term		5 years
Laboratory Space \| Boston, Massachusetts
Lessee Lease Description [Line Items]
Area of leased space \| ft²			3,560
Lessee operating lease commenced month and year			2018-07
Lessee operating lease expiration month and year			2020-08
Square feet under lease \| ft²	6,244
Lessee operating lease lease not yet commenced commencement year	2020
Lessee operating lease lease not yet commenced expiration year	2025