XML 47 R39.htm IDEA: XBRL DOCUMENT v3.23.3

Notes to the consolidated balance sheet Shareholders' Equity - Movements in BSPCE and BSA share warrants (in number of shares issuable upon exercise) (Details)		6 Months Ended
	May 25, 2023 shares	Jun. 30, 2023 shares	Jun. 30, 2022 € / shares
BSPCE and BSA Share Warrants
Notes to the consolidated balance sheet
Outstanding, Beginning balance		806,800
Issued			10,000
Outstanding, Ending balance		816,800
Number of exercisable shares			310,800
BSPCE plans
Notes to the consolidated balance sheet
Outstanding, Beginning balance		488,800
Outstanding, Ending balance		488,800
Number of exercisable shares			8,800
BSPCE - 2013 Plan
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 0.59
Outstanding, Beginning balance		8,800
Outstanding, Ending balance		8,800
Number of exercisable shares			8,800
BSPCE 2021
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 11.74
Outstanding, Beginning balance		480,000
Outstanding, Ending balance		480,000
BSA plans
Notes to the consolidated balance sheet
Outstanding, Beginning balance		318,000
Issued			10,000
Outstanding, Ending balance		328,000
Number of exercisable shares			302,000
Number of share warrants outstanding | shares		480,088
BSA - 2017 plan
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 6.68
Outstanding, Beginning balance		130,000
Outstanding, Ending balance		130,000
Number of exercisable shares			130,000
BSA - 2018 plan
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 6.07
Outstanding, Beginning balance		116,000
Outstanding, Ending balance		116,000
Number of exercisable shares			116,000
BSA 2019
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 2.20
Outstanding, Beginning balance		10,000
Outstanding, Ending balance		10,000
Number of exercisable shares			10,000
BSA 2019 bis
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 3.68
Outstanding, Beginning balance		10,000
Outstanding, Ending balance		10,000
Number of exercisable shares			10,000
BSA 2019 ter
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 3.68
Outstanding, Beginning balance		36,000
Outstanding, Ending balance		36,000
Number of exercisable shares			36,000
BSA 2021
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 11.74
Outstanding, Beginning balance		16,000
Outstanding, Ending balance		16,000
BSA 2023 plan
Notes to the consolidated balance sheet
Exercise price (in euros)			€ 2.51
Issued	10,000		10,000
Outstanding, Ending balance		10,000

X

- 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

Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 47
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of other equity instruments (ie other than share options) exercisable in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The weighted average exercise price of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2022-03-24
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	iva_IfrsClassOfWarrantOrRightOutstanding
Namespace Prefix:	iva_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_BspceAndBsaShareWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_BspcePlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_Bspce2013PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_Bspce2021PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_BsaPlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_Bsa2017PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_Bsa2018PlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_NewShareWarrantPlansBsa2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_NewShareWarrantPlansBsa2019BisMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_NewShareWarrantPlansBsa2019TerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_NewBsa2021ShareWarrantPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=iva_Bsa20231ShareWarrantPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: