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Grant and Subsidy Income - Additional Information (Details) $ in Thousands, € in Millions	3 Months Ended		9 Months Ended
	Jan. 31, 2024 CAD ($)	Jan. 31, 2023 CAD ($)	Jan. 31, 2024 CAD ($)	Jan. 31, 2024 EUR (€)	Jan. 31, 2023 CAD ($)	Jan. 31, 2023 EUR (€)	May 31, 2022 EUR (€)
Grant And Subsidy Income [Abstract]
Grant awarded							€ 0.5
Proceeds from grants				€ 0.2		€ 0.2
Grant income | $	$ 0	$ 22	$ 299		$ 306

X

- Definition

The amount of assistance by government in the form of transfers of resources to an entity in return for past or future compliance with certain conditions relating to the operating activities of the entity, recognised as deferred income. They exclude those forms of government assistance that cannot reasonably have a value placed upon them and transactions with government that cannot be distinguished from the normal trading transactions of the entity. [Refer: Deferred income other than contract liabilities; Government [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_GovernmentGrants
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The cash inflow from government grants, classified as investing activities. [Refer: Government [member]; Government grants]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 20
-IssueDate 2023-01-01
-Paragraph 28
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=20&code=ifrs-tx-2023-en-r&anchor=para_28&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of income recognised in relation to government grants. [Refer: Government grants]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 20
-IssueDate 2023-01-01
-Paragraph 39
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=20&code=ifrs-tx-2023-en-r&anchor=para_39_b&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_RevenueFromGovernmentGrants
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Grant and subsidy income.

+ References

No definition available.

+ Details

Name:	ipa_GrantAndSubsidyIncomeAbstract
Namespace Prefix:	ipa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration