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- References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2025-01-01
-Paragraph 114
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2025-en-r&anchor=para_114&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2025-01-01
-Paragraph 113
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2025-en-r&anchor=para_113_a&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 103
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_103&doctype=Standard
-URIDate 2025-03-27

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 103
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_103&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
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The co-fund percentage of trials of licensed product.

No definition available.

Name:	inpha_CoFundPercentageOfTrialsOfLicensedProduct
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The commercialization milestones pursuant to the agreement.

No definition available.

Name:	inpha_CommercializationMilestones
Namespace Prefix:	inpha_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The development and regulatory milestones pursuant to the agreement.

No definition available.

Name:	inpha_DevelopmentAndRegulatoryMilestones
Namespace Prefix:	inpha_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The maximum amount receivable from counter party upon achievement of certain development milestones.

No definition available.

Name:	inpha_MaximumAmountReceivableFromCounterPartyUponAchievementOfCertainDevelopmentMilestones
Namespace Prefix:	inpha_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

The maximum amount that receivable from counter party upon achievement of certain development and regulatory milestones and commercialization milestones.

No definition available.

Name:	inpha_MaximumAmountReceivableFromCounterPartyUponAchievementOfCertainMilestones
Namespace Prefix:	inpha_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The amount of option exercise fee payable by the counter party.

No definition available.

Name:	inpha_OptionExerciseFeePayableByCounterParty
Namespace Prefix:	inpha_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The percentage of profits in Europe.

No definition available.

Name:	inpha_PercentageOfProfitsInEurope
Namespace Prefix:	inpha_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

The cash inflow from co-development agreement and option agreement.

No definition available.

Name:	inpha_ReceiptsFromCodevelopmentAgreementAndOptionAgreement
Namespace Prefix:	inpha_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Revenue From Contracts With Customers, Milestone Payment Received

No definition available.