Notes to the consolidated balance sheet - Other Non-Current Assets (Details) - EUR (€) € in Thousands	Jun. 30, 2023	Dec. 31, 2022
Notes to the consolidated balance sheet
Longterm deposit accounts	€ 9,300	€ 700
Advance payments - non-current	895	895
Accrued income	79	65
Security deposits	8	8
Other noncurrent assets	€ 10,282	€ 1,668

The amount of non-current accrued income including non-current contract assets. [Refer: Accrued income including contract assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
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-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of non-current assets that the entity does not separately disclose in the same statement or note. [Refer: Non-current assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard
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- Definition

Amount represents the non current advances of suppliers.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

The non-current amount of security deposits.

+ References

No definition available.

+ Details

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

- References

No definition available.

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