- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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- Definition

Represents the cumulative amount of research funding received in a collaborative arrangement.

+ References

No definition available.

+ Details

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Namespace Prefix:	iva_
Data Type:	xbrli:monetaryItemType
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- Definition

The increase in amount payable inrespect of clinical services received extended.

+ References

No definition available.

+ Details

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- Definition

The minimum amount payable inrespect of clinical services received.

+ References

No definition available.

+ Details

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- Definition

The amount of proposed tax adjustment (including penalties and late payment interest) received from French tax authorities.

+ References

No definition available.

+ Details

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- Details

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Events After the Reporting Date (Details) € in Millions, $ in Millions	Feb. 11, 2021 EUR (€)	Aug. 17, 2018 EUR (€)	Feb. 28, 2022 USD ($)	Jan. 31, 2022 EUR (€)	Dec. 31, 2021 EUR (€)	Dec. 31, 2019 EUR (€)
Events after the reporting date
Milestone payments received					€ 4.0
AbbVie
Events after the reporting date
Milestone payments received					€ 4.0	€ 0.0
Provision related to tax audit for the years ended 2013, 2014 and 2015
Events after the reporting date
Proposed tax adjustment		€ 1.9
CIR 2013-2015
Events after the reporting date
Proposed tax adjustment		€ 1.9
Tax audit for payroll taxes \| Provision related to tax audit for the years ended 2013, 2014 and 2015
Events after the reporting date
Proposed tax adjustment	€ 1.9
Receipt Of milestone payments \| AbbVie
Events after the reporting date
Milestone payments received				€ 4.0
Service Agreement For Clinical Services[ Member]
Events after the reporting date
Minimum Amount Payable \| $			$ 4.3
Increse in amount payable due to extend the services rendered \| $			$ 1.6