XML 145 R134.htm IDEA: XBRL DOCUMENT
v3.23.3

Share-Based Payments - Summary of Performance Rights Granted (Detail) - Share consolidation adjustment [member] | 12 Months Ended
--- | ---
Jun. 30, 2023 shares $ / shares | Jun. 30, 2022 shares $ / shares | Jun. 30, 2021 shares $ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Balance at end of the end fiscal year Number | 1,339,621 | 3,100,000 | 2,700,291
Granted during the fiscal year Number | 1,624,499 | 339,621 | 1,350,000
Exercised during the fiscal year Number | (706,173) | (1,200,000) | (950,291)
Lapsed during the fiscal year Number | (364,866) | (900,000) | 0
Balance at end of the end fiscal year Number | 1,893,081 | 1,339,621 | 3,100,000
Vested and exercisable at end of the fiscal year Number | 0 | 0 | 0
November 25, 2016 [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Grant date |  |  | November 25, 2016
Type of performance right granted |  |  | Director rights
Fair value | $ / shares |  |  | $ 0.38
Balance at end of the end fiscal year Number |  | 0 | 273,637
Granted during the fiscal year Number |  |  | 0
Exercised during the fiscal year Number |  |  | (273,637)
Lapsed during the fiscal year Number |  |  | 0
Balance at end of the end fiscal year Number |  |  | 0
Vested and exercisable at end of the fiscal year Number |  |  | 0
November 17, 2017 [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Grant date |  |  | November 17, 2017
Type of performance right granted |  |  | Director rights
Fair value | $ / shares |  |  | $ 0.21
Balance at end of the end fiscal year Number |  | 0 | 426,654
Granted during the fiscal year Number |  |  | 0
Exercised during the fiscal year Number |  |  | (426,654)
Lapsed during the fiscal year Number |  |  | 0
Balance at end of the end fiscal year Number |  |  | 0
Vested and exercisable at end of the fiscal year Number |  |  | 0
November 16, 2018 [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Grant date |  | November 16, 2018 | November 16, 2018
Type of performance right granted |  | Director rights | Director rights
Fair value | $ / shares |  | $ 0.39 | $ 0.39
Balance at end of the end fiscal year Number | 0 | 250,000 | 500,000
Granted during the fiscal year Number |  | 0 | 0
Exercised during the fiscal year Number |  | (250,000) | (250,000)
Lapsed during the fiscal year Number |  | 0 | 0
Balance at end of the end fiscal year Number |  | 0 | 250,000
Vested and exercisable at end of the fiscal year Number |  | 0 | 0
November 1, 2019 [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Grant date | November 1, 2019 | November 1, 2019 | November 1, 2019
Type of performance right granted | Director rights | Director rights | Director rights
Fair value | $ / shares | $ 0.28 | $ 0.28 | $ 0.28
Balance at end of the end fiscal year Number | 1,000,000 | 1,500,000 | 1,500,000
Granted during the fiscal year Number | 0 | 0 |
Exercised during the fiscal year Number | (500,000) | (500,000) | 0
Lapsed during the fiscal year Number | 0 | 0 | 0
Balance at end of the end fiscal year Number | 500,000 | 1,000,000 | 1,500,000
Vested and exercisable at end of the fiscal year Number | 0 | 0 | 0
October 27, 2020 [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Grant date |  | October 27, 2020 | October 27, 2020
Type of performance right granted |  | Director rights | Director rights
Fair value | $ / shares |  | $ 0.255 | $ 0.255
Balance at end of the end fiscal year Number | 0 | 1,350,000 | 0
Granted during the fiscal year Number |  | 0 | 1,350,000
Exercised during the fiscal year Number |  | (450,000) | 0
Lapsed during the fiscal year Number |  | (900,000) | 0
Balance at end of the end fiscal year Number |  | 0 | 1,350,000
Vested and exercisable at end of the fiscal year Number |  | 0 | 0
November 23, 2022 [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Grant date | November 23, 2022 |  |
Type of performance right granted | Director rights |  |
Fair value | $ / shares | $ 0.31 |  |
Balance at end of the end fiscal year Number | 0 |  |
Granted during the fiscal year Number | 1,166,667 |  |
Exercised during the fiscal year Number | 0 |  |
Lapsed during the fiscal year Number | 0 |  |
Balance at end of the end fiscal year Number | 1,166,667 | 0 |
Vested and exercisable at end of the fiscal year Number | 0 |  |
December 1, 2021 [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Grant date | December 1, 2021 | December 1, 2021 |
Type of performance right granted | Director rights | Director rights |
Fair value | $ / shares | $ 0.49 | $ 0.49 |
Balance at end of the end fiscal year Number | 339,621 | 0 |
Granted during the fiscal year Number | 0 | 339,621 |
Exercised during the fiscal year Number | (113,207) | 0 |
Lapsed during the fiscal year Number | 0 | 0 |
Balance at end of the end fiscal year Number | 226,414 | 339,621 | 0
Vested and exercisable at end of the fiscal year Number | 0 | 0 |
November 23, 2022 [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Grant date | November 23, 2022 |  |
Type of performance right granted | Director rights |  |
Fair value | $ / shares | $ 0.31 |  |
Balance at end of the end fiscal year Number | 0 |  |
Granted during the fiscal year Number | 457,832 |  |
Exercised during the fiscal year Number | (92,966) |  |
Lapsed during the fiscal year Number | (364,866) |  |
Balance at end of the end fiscal year Number | 0 | 0 |
Vested and exercisable at end of the fiscal year Number | 0 |  |

X
- Definition The date on which share-based payment arrangements are granted. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 45 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph IG23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_IG23&doctype=Implementation%20Guidance -URIDate 2023-03-23 + Details
Name: | ifrs-full_DateOfGrantOfSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_47_b&doctype=Standard -URIDate 2023-03-23 + 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) outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2023-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of other equity instruments exercised in share based payment arrangement. + References No definition available. + Details
Name: | immp_NumberOfOtherEquityInstrumentsExercisedInShareBasedPaymentArrangement
Namespace Prefix: | immp_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of other equity instruments vested and exercisable in share based payment arrangement. + References No definition available. + Details
Name: | immp_NumberOfOtherEquityInstrumentsVestedAndExercisableInShareBasedPaymentArrangement
Namespace Prefix: | immp_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share Based Payment Arrangement Other Equity instruments Grants In Period Weighted Average Grant Date Fair Value + References No definition available. + Details
Name: | immp_ShareBasedPaymentArrangementOtherEquityInstrumentsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | immp_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based compensation lapsed + References No definition available. + Details
Name: | immp_SharebasedCompensationLapsed
Namespace Prefix: | immp_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Types of performance right granted description + References No definition available. + Details
Name: | immp_TypesOfPerformanceRightGrantedDescription
Namespace Prefix: | immp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | immp_ShareConsolidationAdjustmentAxis=immp_ShareConsolidationAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=immp_PerformanceRightsOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=immp_PerformanceRightsTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=immp_PerformanceRightsThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=immp_PerformanceRightsFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=immp_PerformanceRightsFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=immp_PerformanceRightsSixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=immp_PerformanceRightsSevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=immp_PerformanceRightsEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |