XML 86 R62.htm IDEA: XBRL DOCUMENT v3.21.1

Company Information - Surety provided to the French tax authorities (Details) € in Thousands	Dec. 31, 2020 EUR (€) item	Jun. 30, 2020 EUR (€)	Dec. 31, 2019 EUR (€)	Feb. 01, 2019 EUR (€) item	Dec. 31, 2018 EUR (€)
Other Non Current Assets [Line Items]
Amount of guarantee	€ 1,700
Longterm deposit accounts	1,698		€ 792		€ 108
Amount of pledge as a percentage of sum not covered by the indemnity to be received				50.00%
Tax Disputees With French Tax Authorities
Other Non Current Assets [Line Items]
Amount of guarantee	€ 1,700			€ 1,700
Number of pledges over cash | item	2			2
Pledge over cash, one | Tax Disputees With French Tax Authorities
Other Non Current Assets [Line Items]
Amount of guarantee				€ 700
Number of pledges over cash | item				1
Amount of pledge as a percentage of sum not covered by the indemnity to be received				50.00%
Pledge over cash, two
Other Non Current Assets [Line Items]
Amount of guarantee	€ 1,000
Pledge over cash, two | Tax Disputees With French Tax Authorities
Other Non Current Assets [Line Items]
Amount of guarantee		€ 1,000
Crdit Agricole bank
Other Non Current Assets [Line Items]
Number of pledges over cash | item	2
Amount of pledge as a percentage of sum not covered by the indemnity to be received	50.00%
Crdit Agricole bank | If dispute remains unresolved
Other Non Current Assets [Line Items]
Amount of guarantee	€ 3,400
Crdit Agricole bank | Tax Disputees With French Tax Authorities
Other Non Current Assets [Line Items]
Amount of guarantee	3,400			€ 3,400
Crdit Agricole bank | Pledge over cash, one
Other Non Current Assets [Line Items]
Amount of guarantee	€ 700
Number of pledges over cash | item	1

X

- Definition

The amount of financial assets that the entity has pledged as collateral for liabilities or contingent liabilities, including amounts that have been reclassified in accordance with paragraph 3.2.23(a) of IFRS 9. [Refer: Contingent liabilities [member]; Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 14
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_14_a&doctype=Standard
-URIDate 2020-01-01

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

It represents information about non current long term deposits from customers.

+ References

No definition available.

+ Details

Name:	iva_NonCurrentLongTermDepositsFromCustomers
Namespace Prefix:	iva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Number of pledges that the company has pledged over cash.

+ References

No definition available.

+ Details

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Namespace Prefix:	iva_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

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

+ References

No definition available.

+ Details

Name:	iva_OtherNonCurrentAssetsLineItems
Namespace Prefix:	iva_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the pledge as percentage of sum not covered by the indemnity.

+ References

No definition available.

+ Details

Name:	iva_PledgeAsPercentageOfSumNotCoveredByIndemnityPercent
Namespace Prefix:	iva_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_ClassesOfProvisionsAxis=iva_TaxDisputeesWithFrenchTaxAuthoritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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X

- Details

Name:	iva_PledgeAxis=iva_PledgeOverCashOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	iva_PledgeAxis=iva_PledgeOverCashTwoMember
Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_CounterpartiesAxis=iva_CreditAgricoleBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementScenarioAxis=iva_DisputeUnresolvedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: