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Contributed Equity - Summary of Unlisted Options (Detail) | 12 Months Ended
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Jun. 30, 2025 $ / shares
Disclosure of classes of share capital [line items] |
Number | 847,600
Unlisted Options Expired on August 4, 2025 [member] |
Disclosure of classes of share capital [line items] |
Exercise Price | $ 0.24
Number | 847,600

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- 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
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- Definition Number of unlisted options. + References No definition available. + Details
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Namespace Prefix: | immp_
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- Definition Unlisted options exercise price. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |