IMMUTEP Ltd (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 1001 - Document - Document and Entity Information Network

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2 Document Information [Table] Table

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3 Legal Entity [Axis] Axis dei:LegalEntityAxis
4 Entity [Domain] Member dei:EntityDomain
5 Document Information [Line Items] LineItems dei:DocumentInformationLineItems
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
8 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
9 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
10 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
11 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
12 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
13 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
14 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
15 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
16 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
17 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
18 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
19 1003 - Statement - Consolidated Balance Sheets Network

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20 Statement [Table] Table

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21 Legal Entity [Axis] Axis dei:LegalEntityAxis
22 Entity [Domain] Member dei:EntityDomain
23 Statement [Line Items] LineItems us-gaap:StatementLineItems
24 ASSETS Abstract ifrs-full:AssetsAbstract
25 Current Assets Abstract ifrs-full:CurrentAssetsAbstract
26 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
27 Current receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
28 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
29 Total Current Assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
30 Non-Current Assets Abstract ifrs-full:NoncurrentAssetsAbstract
31 Plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
32 Intangibles Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
33 Total Non-Current Assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
34 TOTAL ASSETS Concept (Monetary) As Of Debit ifrs-full:Assets
35 Current Liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
36 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
37 Employee benefits Concept (Monetary) As Of Credit ifrs-full:CurrentProvisionsForEmployeeBenefits
38 Total Current Liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
39 Non-Current Liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
40 Convertible note liability Concept (Monetary) As Of Credit immp:ConvertibleNotesNonCurrent
41 Warrant liability Concept (Monetary) As Of Credit immp:WarrantyLiabilities
42 Employee benefits Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisionsForEmployeeBenefits
43 Deferred tax liability Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
44 Total Non-Current Liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
45 TOTAL LIABILITIES Concept (Monetary) As Of Credit ifrs-full:Liabilities
46 NET ASSETS Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
47 EQUITY Abstract ifrs-full:EquityAbstract
48 Contributed equity Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
49 Reserves Concept (Monetary) As Of Credit ifrs-full:OtherReserves
50 Accumulated losses Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
51 Equity attributable to the owners of Immutep Limited Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
52 TOTAL EQUITY Concept (Monetary) As Of Credit ifrs-full:Equity
53 1004 - Statement - Consolidated Statements of Comprehensive Income Network

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54 Statement [Table] Table

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55 Legal Entity [Axis] Axis dei:LegalEntityAxis
56 Entity [Domain] Member dei:EntityDomain
57 Statement [Line Items] LineItems us-gaap:StatementLineItems
58 Revenue Abstract ifrs-full:RevenueAbstract
59 License revenue Concept (Monetary) For Period Credit ifrs-full:LicenceFeeIncome
60 Other income Abstract immp:OtherIncome1Abstract
61 Miscellaneous income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
62 Grant income Concept (Monetary) For Period Credit ifrs-full:RevenueFromGovernmentGrants
63 Net gain on foreign exchange Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
64 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
65 Total revenue and other income Concept (Monetary) For Period Credit ifrs-full:Revenue
66 Expenses Abstract ifrs-full:ExpenseByNatureAbstract
67 Research & development and intellectual property Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
68 Corporate administrative expenses Concept (Monetary) For Period Debit ifrs-full:GeneralAndAdministrativeExpense
69 Depreciation and amortization expenses Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
70 Share Based Payment to strategic investor Concept (Monetary) For Period Debit immp:ShareBasedPaymentToStrategicInvestor
71 Loss on foreign exchange Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
72 Net finance cost Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
73 Changes in fair value of comparability milestone Concept (Monetary) For Period Debit immp:ChangesInFairValueOfComparabilityMilestone
74 Net loss on fair value movement of warrants Concept (Monetary) For Period Debit immp:LossesOnChangeInFairValueOfWarrants
75 Changes in fair value of convertible note liability Concept (Monetary) For Period Debit ifrs-full:LossesOnChangeInFairValueOfDerivatives
76 Loss before income tax expense Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
77 Income tax(expense)/ benefit Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
78 Loss after income tax expense for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
79 Other Comprehensive Income/(Loss) Abstract ifrs-full:OtherComprehensiveIncomeAbstract
80 Exchange differences on the translation of foreign operations Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
81 Other comprehensive income/(loss) for the year net of tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
82 Comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
83 Loss for the year is attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
84 Owners of Immutep Ltd Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
85 Loss after income tax expense for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
86 Total comprehensive loss for the year is attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
87 Owners of Immutep Ltd Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
88 Comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
89 Basic loss per share Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
90 Diluted loss per share Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
91 1005 - Statement - Consolidated Statements of Cash Flows Network

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92 Statement [Table] Table

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93 Legal Entity [Axis] Axis dei:LegalEntityAxis
94 Entity [Domain] Member dei:EntityDomain
95 Statement [Line Items] LineItems us-gaap:StatementLineItems
96 Cash flows related to operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
97 Payments to suppliers and employees (inclusive of GST) Concept (Monetary) For Period Credit ifrs-full:PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees
98 Miscellaneous income Concept (Monetary) For Period Debit ifrs-full:ReceiptsFromRoyaltiesFeesCommissionsAndOtherRevenue
99 License revenue Concept (Monetary) For Period Credit immp:LicenceFeeIncomeClassifiedAsOperatingActivities
100 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
101 Tax received / (paid) Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
102 Grant income Concept (Monetary) For Period Debit immp:GrantIncomeClassifiedAsOperatingActivities
103 Payment for security deposit Concept (Monetary) For Period Debit immp:PaymentsForSecurityDepositClassifiedAsOperatingActivities
104 Net cash flows used in operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
105 Cash flows related to investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
106 Proceeds from disposal of plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
107 Payments for plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
108 Net cash flows provided by (used in) investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
109 Cash flows related to financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
110 Proceeds from issue of shares and options Concept (Monetary) For Period Debit immp:ProceedsFromIssuingSharesAndOtherEquityInstruments
111 Proceeds from issue of warrants Concept (Monetary) For Period Debit immp:ProceedsFromIssueOfWarrants
112 Proceeds from issue of convertible notes Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures
113 Repayment of borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
114 Share issue transaction costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForShareIssueCosts
115 Finance cost of warrants Concept (Monetary) For Period Credit immp:PaymentsForFinanceCostOfWarrants
116 Net cash flows provided by (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
117 Net (decrease) increase in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
118 Effect of exchange rate on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
119 Cash and cash equivalents at the beginning of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
120 Cash and cash equivalents at the end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
121 1006 - Statement - Consolidated Statements of Changes in Equity Network

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122 Statement [Table] Table

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123 Legal Entity [Axis] Axis dei:LegalEntityAxis
124 Entity [Domain] Member dei:EntityDomain
125 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
126 Equity [member] Member ifrs-full:EquityMember
127 Issued Equity [member] Member ifrs-full:IssuedCapitalMember
128 Reserves [member] Member ifrs-full:OtherReservesMember
129 Accumulated Losses [member] Member ifrs-full:RetainedEarningsMember
130 Statement [Line Items] LineItems us-gaap:StatementLineItems
131 At the beginning of reporting period, amount Concept (Monetary) As Of Credit ifrs-full:Equity
132 Other comprehensive income (loss) for the year, net of tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
133 Loss after income tax expense for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
134 Total comprehensive income/( loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
135 Transactions with owners in their capacity as owners: Abstract immp:TransactionsWithOwnersInTheirCapacityAsOwnersAbstract
136 Contributions of equity, net of transaction costs Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners
137 Issue of convertible notes Concept (Monetary) For Period Credit ifrs-full:IssueOfConvertibleInstruments
138 Share based payment Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
139 Share based payment to strategic investor Concept (Monetary) For Period Credit immp:IncreaseDecreaseThroughSharebasedPaymentTransactionsToStrategicInvestors
140 Employee share based payment Concept (Monetary) For Period Credit immp:IncreaseDecreaseThroughSharebasedPaymentTransactionsToEmployees
141 Exercise of vested performance rights Concept (Monetary) For Period Credit immp:ExerciseAndLapseOfShareOptionsAndVestingOfShareAwards
142 At reporting date, amount Concept (Monetary) As Of Credit ifrs-full:Equity
143 1007 - Disclosure - Summary of Significant Accounting Policies Network

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144 Statement [Table] Table

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146 Entity [Domain] Member dei:EntityDomain
147 Statement [Line Items] LineItems us-gaap:StatementLineItems
148 Summary of Significant Accounting Policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
149 1008 - Disclosure - Financial Risk Management Network

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150 Statement [Table] Table

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151 Legal Entity [Axis] Axis dei:LegalEntityAxis
152 Entity [Domain] Member dei:EntityDomain
153 Statement [Line Items] LineItems us-gaap:StatementLineItems
154 Financial Risk Management Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialRiskManagementExplanatory
155 1009 - Disclosure - Critical Accounting Judgements, Estimates and Assumptions Network

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156 Statement [Table] Table

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157 Legal Entity [Axis] Axis dei:LegalEntityAxis
158 Entity [Domain] Member dei:EntityDomain
159 Statement [Line Items] LineItems us-gaap:StatementLineItems
160 Critical Accounting Judgements, Estimates and Assumptions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
161 1010 - Disclosure - Segment Reporting Network

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162 Statement [Table] Table

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163 Legal Entity [Axis] Axis dei:LegalEntityAxis
164 Entity [Domain] Member dei:EntityDomain
165 Statement [Line Items] LineItems us-gaap:StatementLineItems
166 Segment Reporting Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
167 1011 - Disclosure - Expenses Network

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168 Statement [Table] Table

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169 Legal Entity [Axis] Axis dei:LegalEntityAxis
170 Entity [Domain] Member dei:EntityDomain
171 Statement [Line Items] LineItems us-gaap:StatementLineItems
172 Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesExplanatory
173 1012 - Disclosure - Income Tax Expense Network

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174 Statement [Table] Table

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175 Legal Entity [Axis] Axis dei:LegalEntityAxis
176 Entity [Domain] Member dei:EntityDomain
177 Statement [Line Items] LineItems us-gaap:StatementLineItems
178 Income Tax Expense Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
179 1013 - Disclosure - Cash and Cash Equivalents Network

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180 Statement [Table] Table

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181 Legal Entity [Axis] Axis dei:LegalEntityAxis
182 Entity [Domain] Member dei:EntityDomain
183 Statement [Line Items] LineItems us-gaap:StatementLineItems
184 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
185 1014 - Disclosure - Current Receivables Network

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186 Statement [Table] Table

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187 Legal Entity [Axis] Axis dei:LegalEntityAxis
188 Entity [Domain] Member dei:EntityDomain
189 Statement [Line Items] LineItems us-gaap:StatementLineItems
190 Current Receivables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
191 1015 - Disclosure - Other Current Assets Network

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192 Statement [Table] Table

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193 Legal Entity [Axis] Axis dei:LegalEntityAxis
194 Entity [Domain] Member dei:EntityDomain
195 Statement [Line Items] LineItems us-gaap:StatementLineItems
196 Other Current Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherCurrentAssetsExplanatory
197 1016 - Disclosure - Non-Current Assets - Plant and Equipment Network

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198 Statement [Table] Table

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199 Legal Entity [Axis] Axis dei:LegalEntityAxis
200 Entity [Domain] Member dei:EntityDomain
201 Statement [Line Items] LineItems us-gaap:StatementLineItems
202 Non-Current Assets - Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
203 1017 - Disclosure - Non-Current Assets - Intangibles Network

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204 Statement [Table] Table

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205 Legal Entity [Axis] Axis dei:LegalEntityAxis
206 Entity [Domain] Member dei:EntityDomain
207 Statement [Line Items] LineItems us-gaap:StatementLineItems
208 Non-Current Assets - Intangibles Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
209 1018 - Disclosure - Deferred Tax Balances Network

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210 Statement [Table] Table

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211 Legal Entity [Axis] Axis dei:LegalEntityAxis
212 Entity [Domain] Member dei:EntityDomain
213 Statement [Line Items] LineItems us-gaap:StatementLineItems
214 Deferred Tax Balances Concept (Text Block (HTML)) For Period immp:DisclosureOfDeferredTaxationExplanatory
215 1019 - Disclosure - Current Liabilites - Trade and Other Payables Network

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216 Statement [Table] Table

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218 Entity [Domain] Member dei:EntityDomain
219 Statement [Line Items] LineItems us-gaap:StatementLineItems
220 Current Liabilites - Trade and Other Payables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory
221 1020 - Disclosure - Non-Current Liabilities - US Warrant Liability Network

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222 Statement [Table] Table

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223 Legal Entity [Axis] Axis dei:LegalEntityAxis
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225 Statement [Line Items] LineItems us-gaap:StatementLineItems
226 Non-Current Liabilities - US Warrant Liability Concept (Text Block (HTML)) For Period immp:NonCurrentLiabilitiesUSWarrantExplanatory
227 1021 - Disclosure - Non Current Liabilites - Convertible Note Network

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228 Statement [Table] Table

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231 Statement [Line Items] LineItems us-gaap:StatementLineItems
232 Non Current Liabilites - Convertible Note Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDebtSecuritiesExplanatory
233 1022 - Disclosure - Current Liabilities - Employee Benefits Network

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234 Statement [Table] Table

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237 Classes of liabilities [axis] Axis ifrs-full:ClassesOfLiabilitiesAxis
238 Liabilities [member] Member ifrs-full:LiabilitiesMember
239 Current Liabilities [member] Member immp:CurrentLiabilitiesMember
240 Non-current Liabilities [member] Member immp:NoncurrentLiabilitiesMember
241 Statement [Line Items] LineItems us-gaap:StatementLineItems
242 Current Liabilities - Employee Benefits Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
243 1023 - Disclosure - Contributed Equity Network

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244 Statement [Table] Table

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246 Entity [Domain] Member dei:EntityDomain
247 Statement [Line Items] LineItems us-gaap:StatementLineItems
248 Contributed Equity Concept (Text Block (HTML)) For Period immp:DisclosureOfContributedEquityExplanatory
249 1024 - Disclosure - Equity - Reserves and Retained Earnings Network

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250 Statement [Table] Table

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254 Equity - Reserves and Retained Earnings Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
255 1025 - Disclosure - Dividends Network

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256 Statement [Table] Table

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260 Dividends Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDividendsExplanatory
261 1026 - Disclosure - Key Management Personnel Disclosures Network

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262 Statement [Table] Table

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266 Key Management Personnel Disclosures Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory
267 1027 - Disclosure - Remuneration of Auditors Network

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268 Statement [Table] Table

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272 Remuneration of Auditors Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAuditorsRemunerationExplanatory
273 1028 - Disclosure - Contingent Liabilities Network

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274 Statement [Table] Table

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278 Contingent Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfContingentLiabilitiesExplanatory
279 1029 - Disclosure - Commitments for Expenditure Network

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280 Statement [Table] Table

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284 Commitments for Expenditure Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
285 1030 - Disclosure - Related Party Transactions Network

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290 Related Party Transactions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
291 1031 - Disclosure - Subsidiaries Network

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292 Statement [Table] Table

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296 Subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
297 1032 - Disclosure - Events Occurring After the Reporting Date Network

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298 Statement [Table] Table

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302 Events Occurring After the Reporting Date Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
303 1033 - Disclosure - Reconciliation of Loss After Income Tax to Net Cash Used in Operating Activities Network

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306 Entity [Domain] Member dei:EntityDomain
307 Statement [Line Items] LineItems us-gaap:StatementLineItems
308 Reconciliation of Loss After Income Tax to Net Cash Used in Operating Activities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashFlowStatementExplanatory
309 1034 - Disclosure - Earnings Per Share Network

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310 Statement [Table] Table

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311 Legal Entity [Axis] Axis dei:LegalEntityAxis
312 Entity [Domain] Member dei:EntityDomain
313 Statement [Line Items] LineItems us-gaap:StatementLineItems
314 Earnings Per Share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
315 1035 - Disclosure - Share - Based Payment Network

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316 Statement [Table] Table

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317 Legal Entity [Axis] Axis dei:LegalEntityAxis
318 Entity [Domain] Member dei:EntityDomain
319 Statement [Line Items] LineItems us-gaap:StatementLineItems
320 Share - Based Payment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
321 1036 - Disclosure - Parent Entity Information Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsEntireDisclosureOfParentEntityInformationExplanatory
322 Statement [Table] Table

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323 Legal Entity [Axis] Axis dei:LegalEntityAxis
324 Entity [Domain] Member dei:EntityDomain
325 Statement [Line Items] LineItems us-gaap:StatementLineItems
326 Parent Entity Information Concept (Text Block (HTML)) For Period immp:EntireDisclosureOfParentEntityInformationExplanatory
327 1037 - Disclosure - Summary of Significant Accounting Policies (Policies) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSummaryOfSignificantAccountingPoliciesExplanatoryPolicies
328 Statement [Table] Table

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329 Legal Entity [Axis] Axis dei:LegalEntityAxis
330 Entity [Domain] Member dei:EntityDomain
331 Statement [Line Items] LineItems us-gaap:StatementLineItems
332 Basis of preparation Concept (Text Block (HTML)) For Period immp:DescriptionOfAccountingPolicyForBasisOfPreparationOfFinancialStatementsExplanatory
333 Principles of consolidation Concept (Text Block (HTML)) For Period immp:DescriptionOfAccountingPolicyForConsolidationOfFinancialStatementsExplanatory
334 Segment reporting Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
335 Foreign currency translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
336 Revenue recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
337 Income tax Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
338 Business combinations Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsExplanatory
339 Impairment of assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
340 Cash and cash equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
341 Current receivables Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory
342 Investments and other financial assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatory
343 Plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
344 Intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory
345 Trade and other payables Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherPayablesExplanatory
346 Compound instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
347 Finance costs Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinanceCostsExplanatory
348 Employee benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
349 Contributed equity Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
350 Earnings per share Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
351 Goods and Services Tax and other similar taxes ('GST') Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory
352 New Accounting Standards and Interpretations not yet mandatory or early adopted Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfOtherAccountingPoliciesRelevantToUnderstandingOfFinancialStatements
353 Parent entity financial information Concept (Text Block (HTML)) For Period immp:DescriptionOfAccountingPolicyForParentEntityInformationExplanatory
354 1038 - Disclosure - Summary of Significant Accounting Policies (Tables) Network

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355 Statement [Table] Table

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356 Legal Entity [Axis] Axis dei:LegalEntityAxis
357 Entity [Domain] Member dei:EntityDomain
358 Statement [Line Items] LineItems us-gaap:StatementLineItems
359 Summary of Depreciation on Other Assets Estimated Useful Lives Concept (Text Block (HTML)) For Period immp:DisclosureOfEstimatedUsefulLivesOfPropertyPlantAndEquipmentExplanatory
360 1039 - Disclosure - Financial Risk Management (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialRiskManagementExplanatoryTables
361 Statement [Table] Table

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362 Legal Entity [Axis] Axis dei:LegalEntityAxis
363 Entity [Domain] Member dei:EntityDomain
364 Statement [Line Items] LineItems us-gaap:StatementLineItems
365 Summary of Exposure to Foreign Currency Risk Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCreditRiskExposureExplanatory
366 Summary of Credit Quality of Financial Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExternalCreditExposuresExplanatory
367 Summary of Contractual Undiscounted Cash Flows Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
368 Summary of Financial Assets and Financial Liabilities Measured and Recognized at Fair Value Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialAssetsAndFinancialLiabilitiesAndReclassificationExplanatory
369 1040 - Disclosure - Non Current Liabilites - Convertible Note (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDebtSecuritiesExplanatoryTables
370 Statement [Table] Table

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371 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
372 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
373 Convertible Notes [member] Member immp:ConvertibleNotesMember
374 Legal Entity [Axis] Axis dei:LegalEntityAxis
375 Entity [Domain] Member dei:EntityDomain
376 Statement [Line Items] LineItems us-gaap:StatementLineItems
377 Summary of Assumptions Which were Based on Market Conditions that Existed at Grant Date Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsExplanatory
378 Summary of Convertible Note Concept (Text Block (HTML)) For Period immp:DisclosureOfNonCurrentLiabilitiesConvertibleNoteExplanatory
379 Summary of Fair Value of Convertible Notes Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
380 1041 - Disclosure - Segment Reporting (Tables) Network

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381 Statement [Table] Table

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382 Legal Entity [Axis] Axis dei:LegalEntityAxis
383 Entity [Domain] Member dei:EntityDomain
384 Statement [Line Items] LineItems us-gaap:StatementLineItems
385 Disclosure of Operating Segment Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
386 1042 - Disclosure - Expenses (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfExpensesExplanatoryTables
387 Statement [Table] Table

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388 Legal Entity [Axis] Axis dei:LegalEntityAxis
389 Entity [Domain] Member dei:EntityDomain
390 Statement [Line Items] LineItems us-gaap:StatementLineItems
391 Disclosure of Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesByNatureExplanatory
392 1043 - Disclosure - Income Tax Expense (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatoryTables
393 Statement [Table] Table

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394 Legal Entity [Axis] Axis dei:LegalEntityAxis
395 Entity [Domain] Member dei:EntityDomain
396 Statement [Line Items] LineItems us-gaap:StatementLineItems
397 Disclosure of Income Tax Expense Benefit Concept (Text Block (HTML)) For Period immp:DisclosureOfIncomeTaxBenefitsExpenseExplanatory
398 Disclosure of Reconciliation of Income Tax Expense to Prima Facie Tax Payable Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
399 Disclosure of Deferred Tax Assets Liability Adjustments Concept (Text Block (HTML)) For Period immp:DisclosureOfDeferredTaxAssetsLiabilityAdjustmentsExplanatory
400 1044 - Disclosure - Cash and Cash Equivalents (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashAndCashEquivalentsExplanatoryTables
401 Statement [Table] Table

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402 Legal Entity [Axis] Axis dei:LegalEntityAxis
403 Entity [Domain] Member dei:EntityDomain
404 Statement [Line Items] LineItems us-gaap:StatementLineItems
405 Disclosure of Cash and Cash Equivalents Concept (Text Block (HTML)) For Period immp:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory
406 1045 - Disclosure - Current Receivables (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherReceivablesExplanatoryTables
407 Statement [Table] Table

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408 Legal Entity [Axis] Axis dei:LegalEntityAxis
409 Entity [Domain] Member dei:EntityDomain
410 Statement [Line Items] LineItems us-gaap:StatementLineItems
411 Disclosure of Current Receivables Concept (Text Block (HTML)) For Period immp:DisclosureOfCurrentTaxReceivablesExplanatory
412 1046 - Disclosure - Other Current Assets (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherCurrentAssetsExplanatoryTables
413 Statement [Table] Table

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414 Legal Entity [Axis] Axis dei:LegalEntityAxis
415 Entity [Domain] Member dei:EntityDomain
416 Statement [Line Items] LineItems us-gaap:StatementLineItems
417 Disclosure of Other Current Assets Concept (Text Block (HTML)) For Period immp:DisclosureOfDetailedInformationOfOtherCurrentAssetsExplanatory
418 1047 - Disclosure - Non-Current Assets - Plant and Equipment (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPropertyPlantAndEquipmentExplanatoryTables
419 Statement [Table] Table

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420 Legal Entity [Axis] Axis dei:LegalEntityAxis
421 Entity [Domain] Member dei:EntityDomain
422 Statement [Line Items] LineItems us-gaap:StatementLineItems
423 Disclosure of Non-Current Assets - Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
424 1048 - Disclosure - Non-Current Assets - Intangibles (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIntangibleAssetsExplanatoryTables
425 Statement [Table] Table

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426 Legal Entity [Axis] Axis dei:LegalEntityAxis
427 Entity [Domain] Member dei:EntityDomain
428 Statement [Line Items] LineItems us-gaap:StatementLineItems
429 Disclosure of Non-Current Assets - Intangibles Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
430 1049 - Disclosure - Deferred Tax Balances (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredTaxationExplanatoryTables
431 Statement [Table] Table

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432 Legal Entity [Axis] Axis dei:LegalEntityAxis
433 Entity [Domain] Member dei:EntityDomain
434 Statement [Line Items] LineItems us-gaap:StatementLineItems
435 Deferred tax assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
436 Deferred tax liabilities Concept (Text Block (HTML)) For Period immp:DisclosureOfDeferredTaxLiabilitiesExplanatory
437 Movements in Deferred Tax Balances Concept (Text Block (HTML)) For Period immp:DisclosureOfMovementsOfDeferredTaxAssetsAndLiabilitiesExplanatory
438 1050 - Disclosure - Current Liabilites - Trade and Other Payables (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfTradeAndOtherPayablesExplanatoryTables
439 Statement [Table] Table

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440 Legal Entity [Axis] Axis dei:LegalEntityAxis
441 Entity [Domain] Member dei:EntityDomain
442 Statement [Line Items] LineItems us-gaap:StatementLineItems
443 Summary of Current Liabilities - Trade And Other Payables Concept (Text Block (HTML)) For Period immp:DisclosureOfDetailedInformationAboutTradeAndOtherPayablesExplanatory
444 1051 - Disclosure - Non-Current Liabilities - US Warrant Liability (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsNonCurrentLiabilitiesUSWarrantExplanatoryTables
445 Statement [Table] Table

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446 Legal Entity [Axis] Axis dei:LegalEntityAxis
447 Entity [Domain] Member dei:EntityDomain
448 Statement [Line Items] LineItems us-gaap:StatementLineItems
449 Schedule of US Warrant Non-Current Liabilities Concept (Text Block (HTML)) For Period immp:DisclosureOfUSWarrantNonCurrentLiabilitiesExplanatory
450 Summary of Fair Value of Warrants Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesExplanatory
451 1052 - Disclosure - Current Liabilities - Employee Benefits (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEmployeeBenefitsExplanatoryTables
452 Statement [Table] Table

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453 Legal Entity [Axis] Axis dei:LegalEntityAxis
454 Entity [Domain] Member dei:EntityDomain
455 Classes of liabilities [axis] Axis ifrs-full:ClassesOfLiabilitiesAxis
456 Liabilities [member] Member ifrs-full:LiabilitiesMember
457 Current Liabilities [member] Member immp:CurrentLiabilitiesMember
458 Non-current Liabilities [member] Member immp:NoncurrentLiabilitiesMember
459 Statement [Line Items] LineItems us-gaap:StatementLineItems
460 Disclosure of Detailed Information of Employee Benefits Current Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDefinedBenefitPlansExplanatory
461 1053 - Disclosure - Contributed Equity (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfContributedEquityExplanatoryTables
462 Statement [Table] Table

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463 Legal Entity [Axis] Axis dei:LegalEntityAxis
464 Entity [Domain] Member dei:EntityDomain
465 Statement [Line Items] LineItems us-gaap:StatementLineItems
466 Summary of Contributed Equity Concept (Text Block (HTML)) For Period immp:DisclosureOfDetailedInformationAboutContributedEquityExplanatory
467 Summary of Ordinary Shares Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
468 Summary of Shares Issued Concept (Text Block (HTML)) For Period immp:DisclosureOfSharesIssuedExplanatory
469 Summary of Unlisted Options Concept (Text Block (HTML)) For Period immp:DisclosureOfUnlistedOptionsExplanatory
470 1054 - Disclosure - Equity - Reserves and Retained Earnings (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatoryTables
471 Statement [Table] Table

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472 Legal Entity [Axis] Axis dei:LegalEntityAxis
473 Entity [Domain] Member dei:EntityDomain
474 Statement [Line Items] LineItems us-gaap:StatementLineItems
475 Summary of Equity Reserves and Retained Earnings Concept (Text Block (HTML)) For Period immp:EquityReservesAndRetainedEarningsTextBlock
476 1055 - Disclosure - Key Management Personnel Disclosures (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInformationAboutKeyManagementPersonnelExplanatoryTables
477 Statement [Table] Table

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478 Legal Entity [Axis] Axis dei:LegalEntityAxis
479 Entity [Domain] Member dei:EntityDomain
480 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
481 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
482 Performance rights [member] Member immp:PerformanceRightsMember
483 Ordinary Shares [member] Member ifrs-full:OrdinarySharesMember
484 Statement [Line Items] LineItems us-gaap:StatementLineItems
485 Summary of Directors and Key Management Personnel Compensation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
486 Summaries of All STI and LTI Performance Rights Granted Under the EIP Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
487 Summary of Number of Options Over Ordinary Shares in Parent Entity Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory
488 1056 - Disclosure - Remuneration of Auditors (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAuditorsRemunerationExplanatoryTables
489 Statement [Table] Table

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490 Legal Entity [Axis] Axis dei:LegalEntityAxis
491 Entity [Domain] Member dei:EntityDomain
492 Statement [Line Items] LineItems us-gaap:StatementLineItems
493 Summary of Detailed Information About Auditors Remuneration Concept (Text Block (HTML)) For Period immp:DisclosureOfDetailedInformationAboutAuditorsRemunerationExplanatory
494 1057 - Disclosure - Commitments for Expenditure (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCommitmentsExplanatoryTables
495 Statement [Table] Table

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496 Legal Entity [Axis] Axis dei:LegalEntityAxis
497 Entity [Domain] Member dei:EntityDomain
498 Statement [Line Items] LineItems us-gaap:StatementLineItems
499 Schedule of Operating Lease Commitment Concept (Text Block (HTML)) For Period immp:DisclosureOfOperatingLeaseCommitmentsExplanatory
500 1058 - Disclosure - Related Party Transactions (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatoryTables
501 Statement [Table] Table

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502 Legal Entity [Axis] Axis dei:LegalEntityAxis
503 Entity [Domain] Member dei:EntityDomain
504 Statement [Line Items] LineItems us-gaap:StatementLineItems
505 Schedule of Transaction Occur with Related Parties Concept (Text Block (HTML)) For Period immp:DisclosureOfReceivablesAndPayablesArisingFromRelatedPartyTransactionsExplanatory
506 1059 - Disclosure - Subsidiaries (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestsInSubsidiariesExplanatoryTables
507 Statement [Table] Table

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508 Legal Entity [Axis] Axis dei:LegalEntityAxis
509 Entity [Domain] Member dei:EntityDomain
510 Statement [Line Items] LineItems us-gaap:StatementLineItems
511 Summary of Subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
512 1060 - Disclosure - Reconciliation of Loss After Income Tax to Net Cash Used in Operating Activities (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCashFlowStatementExplanatoryTables
513 Statement [Table] Table

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514 Legal Entity [Axis] Axis dei:LegalEntityAxis
515 Entity [Domain] Member dei:EntityDomain
516 Statement [Line Items] LineItems us-gaap:StatementLineItems
517 Summary of Reconciliation of Loss After Income Tax to Net Cash Used in Operating Activities Concept (Text Block (HTML)) For Period immp:DisclosureOfReconciliationOfIncomeLossAfterIncomeTaxToNetCashUsedInOperatingActivitiesExplanatory
518 1061 - Disclosure - Earnings Per Share (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfEarningsPerShareExplanatoryTables
519 Statement [Table] Table

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520 Legal Entity [Axis] Axis dei:LegalEntityAxis
521 Entity [Domain] Member dei:EntityDomain
522 Statement [Line Items] LineItems us-gaap:StatementLineItems
523 Summary of Earnings Per Share Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
524 Summary of Antidilutive Securities Excluded from Computation of Earnings Per Share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory
525 1062 - Disclosure - Share - Based Payment (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfSharebasedPaymentArrangementsExplanatoryTables
526 Statement [Table] Table

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527 Legal Entity [Axis] Axis dei:LegalEntityAxis
528 Entity [Domain] Member dei:EntityDomain
529 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
530 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
531 Non Executive Directors [member] Member immp:NonExecutiveDirectorsMember
532 Ridgeback Capital Investments and Trout Group LLC. [member] Member immp:RidgebackCapitalInvestmentsAndTroutGroupLLCMember
533 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
534 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
535 Stock Option 1 [member] Member immp:StockOption1Member
536 Plan Name1 [axis] Axis immp:PlanName1Axis
537 Plan Name 1 [Domain] Member immp:PlanName1Domain
538 Equity incentive plan [member] Member immp:EquityIncentivePlanMember
539 Statement [Line Items] LineItems us-gaap:StatementLineItems
540 Summary of STI Performance Rights Granted Concept (Text Block (HTML)) For Period immp:DisclosureOfModelInputsForShortTermIncentivePerformanceRightsGrantedExplanatory
541 Schedule of Performance Rights Granted Concept (Text Block (HTML)) For Period immp:DisclosureOfModelInputsForLongTermIncentivePerformanceRightsGrantedExplanatory
542 Summary of Model Inputs for Perdirnance Rights Granted Concept (Text Block (HTML)) For Period immp:DisclosureOfModelInputsForPerformanceRightsGrantedExplanatory
543 Summaries of Options Granted Under EIP Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
544 Summary of Total Expenses Arising From Share-based Payment Transactions Concept (Text Block (HTML)) For Period immp:DisclosureOfExpenseFromSharebasedPaymentArrangementsExplanatory
545 1063 - Disclosure - Parent Entity Information (Tables) Network

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 http://imetrix.edgar-online.com/taxonomy/role/NotesToFinancialStatementsEntireDisclosureOfParentEntityInformationExplanatoryTables
546 Statement [Table] Table

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547 Legal Entity [Axis] Axis dei:LegalEntityAxis
548 Entity [Domain] Member dei:EntityDomain
549 Statement [Line Items] LineItems us-gaap:StatementLineItems
550 Statement of Comprehensive Loss of Parent Entity Concept (Text Block (HTML)) For Period immp:DisclosureOfDetailedInformationAboutStatementOfComprehensiveLossOfParentEntityExplanatory
551 Statement of Financial Position of Parent Entity Concept (Text Block (HTML)) For Period immp:DisclosureOfDetailedInformationAboutStatementOfFinancialPositionOfParentEntityExplanatory
552 1064 - Disclosure - Summary of Significant Accounting Policies - Summary of Depreciation on Other Assets Estimated Useful Lives (Detail) Network

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 http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfDepreciationOnOtherAssetsEstimatedUsefulLives
553 Disclosure of detailed information about property, plant and equipment [table] Table

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
554 Legal Entity [Axis] Axis dei:LegalEntityAxis
555 Entity [Domain] Member dei:EntityDomain
556 Range [axis] Axis ifrs-full:RangeAxis
557 Ranges [member] Member ifrs-full:RangesMember
558 Bottom of Range [member] Member ifrs-full:BottomOfRangeMember
559 Top of Range [member] Member ifrs-full:TopOfRangeMember
560 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
561 Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
562 Computers [member] Member ifrs-full:ComputerEquipmentMember
563 Plant and Equipment [member] Member immp:PlantAndEquipmentsMember
564 Furniture [member] Member immp:FurnitureMember
565 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
566 Estimated useful lives of assets Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
567 1065 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Network

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 http://imetrix.edgar-online.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformation
568 Disclosure of detailed information about property, plant and equipment [table] Table

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
569 Legal Entity [Axis] Axis dei:LegalEntityAxis
570 Entity [Domain] Member dei:EntityDomain
571 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
572 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
573 Intellectual Property 1 [Member] Member immp:IntellectualProperty1Member
574 Range [axis] Axis ifrs-full:RangeAxis
575 Ranges [member] Member ifrs-full:RangesMember
576 Weighted average [member] Member ifrs-full:WeightedAverageMember
577 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
578 Average intellectual property period Concept (Decimal) As Of ifrs-full:RemainingAmortisationPeriodOfIntangibleAssetsMaterialToEntity
579 1066 - Disclosure - Financial Risk Management - Summary of Exposure to Foreign Currency Risk (Detail) Network

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580 Disclosure Of Effect Of Changes In Foreign Exchange Rates Explanatory [Table] Table

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581 Legal Entity [Axis] Axis dei:LegalEntityAxis
582 Entity [Domain] Member dei:EntityDomain
583 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
584 Risks [member] Member ifrs-full:TypesOfRisksMember
585 Currency Risk [member] Member ifrs-full:CurrencyRiskMember
586 Disclosure Of Effect Of Changes In Foreign Exchange Rates Explanatory [Line Items] LineItems immp:DisclosureOfEffectOfChangesInForeignExchangeRatesExplanatoryLineItems
587 Cash in bank Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
588 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherReceivables
589 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayables
590 1067 - Disclosure - Financial Risk Management - Additional Information (Detail) Network

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591 Disclosure of detailed information about financial instruments [table] Table

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592 Legal Entity [Axis] Axis dei:LegalEntityAxis
593 Entity [Domain] Member dei:EntityDomain
594 Range [axis] Axis ifrs-full:RangeAxis
595 Ranges [member] Member ifrs-full:RangesMember
596 Ten Percentage Adjustment [Member] Member immp:TenPercentageAdjustmentMember
597 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
598 Risks [member] Member ifrs-full:TypesOfRisksMember
599 Currency Risk [member] Member ifrs-full:CurrencyRiskMember
600 Liquidity Risk [member] Member ifrs-full:LiquidityRiskMember
601 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
602 Assets [member] Member ifrs-full:ClassesOfAssetsMember
603 Financial Assets And Liabilities [member] Member immp:FinancialAssetsAndLiabilitiesMember
604 Financial Instruments [member] Member immp:FinancialInstrumentsMember
605 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
606 Effect of 10% exchange rate movements on post-tax loss Concept (Monetary) For Period Credit immp:EstimatedFinancialEffectProfitLoss
607 Description of risk Concept (Text/String) For Period immp:DescriptionOfExchangeRateSensitivity
608 Deposits at call Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
609 Financial instruments Concept (Monetary) As Of Debit immp:FinancialInstruments
610 1068 - Disclosure - Financial Risk Management - Summary of Credit Quality of Financial Assets (Detail) Network

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611 Disclosure of external credit grades [table] Table

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612 Legal Entity [Axis] Axis dei:LegalEntityAxis
613 Entity [Domain] Member dei:EntityDomain
614 External credit grades [axis] Axis ifrs-full:ExternalCreditGradesAxis
615 Entity's total for external credit grades [member] Member ifrs-full:EntitysTotalForExternalCreditGradesMember
616 External Credit A Grades [Member] Member immp:ExternalCreditAGradesMember
617 Disclosure Of Reasonably Possible Changes To Actuarial Assumptions [Line Items] LineItems immp:DisclosureOfReasonablyPossibleChangesToActuarialAssumptionsLineItems
618 Cash at bank and short-term bank deposits Minimum rating of A Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
619 1069 - Disclosure - Financial Risk Management - Summary of Contractual Undiscounted Cash Flows (Detail) Network

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620 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

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621 Legal Entity [Axis] Axis dei:LegalEntityAxis
622 Entity [Domain] Member dei:EntityDomain
623 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
624 Carrying amount [member] Member ifrs-full:CarryingAmountMember
625 Carrying Amount (Assets/Liabilities) [member] Member immp:CarryingValueMember
626 Maturity [axis] Axis ifrs-full:MaturityAxis
627 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
628 Less Than 6 Months [member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanSixMonthsMember
629 More Than 5 Years [member] Member ifrs-full:LaterThanFiveYearsMember
630 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
631 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows
632 Convertible note liability (refer note 15) Concept (Monetary) As Of Credit immp:ConvertibleNoteLiabilityUndiscountedCashFlows
633 Non-Derivatives Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
634 1070 - Disclosure - Financial Risk Management - Summary of Financial Assets and Financial Liabilities Measured and Recognized at Fair Value (Detail) Network

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635 Disclosure of fair value measurement of liabilities [table] Table

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636 Legal Entity [Axis] Axis dei:LegalEntityAxis
637 Entity [Domain] Member dei:EntityDomain
638 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
639 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
640 Level 2 [member] Member ifrs-full:Level2OfFairValueHierarchyMember
641 Level 3 [member] Member ifrs-full:Level3OfFairValueHierarchyMember
642 Measurement [axis] Axis ifrs-full:MeasurementAxis
643 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
644 Recurring Fair Value Measurement [member] Member ifrs-full:RecurringFairValueMeasurementMember
645 Disclosure of fair value measurement of liabilities [line items] LineItems ifrs-full:DisclosureOfFairValueMeasurementOfLiabilitiesLineItems
646 Liabilities Abstract ifrs-full:CategoriesOfFinancialLiabilitiesAbstract
647 Convertible note liability Concept (Monetary) As Of Credit immp:ConvertibleNoteLiability
648 Warrant liability Concept (Monetary) As Of Credit immp:WarrantyLiabilities
649 Total liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
650 1071 - Disclosure - Financial Risk Management - Summary of Valuation Inputs and Relationships to Fair Value (Detail) Network

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651 Disclosure of significant unobservable inputs used in fair value measurement of liabilities [table] Table

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652 Legal Entity [Axis] Axis dei:LegalEntityAxis
653 Entity [Domain] Member dei:EntityDomain
654 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
655 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
656 Convertible Notes [member] Member immp:ConvertibleNotesMember
657 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
658 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
659 Level 3 [member] Member ifrs-full:Level3OfFairValueHierarchyMember
660 Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items] LineItems ifrs-full:DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfLiabilitiesLineItems
661 Convertible note Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
662 Face value Concept (Monetary) As Of ifrs-full:NotionalAmount
663 Interest rate of note Concept (Percent) For Period ifrs-full:InterestRateSignificantUnobservableInputsAssets
664 Risk adjusted interest rate Concept (Percent) For Period ifrs-full:AdjustmentToMidmarketConsensusPriceSignificantUnobservableInputsAssets
665 1072 - Disclosure - Critical Accounting Judgements, Estimates And Assumptions - Additional Information (Detail) Network

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666 Disclosure of changes in accounting estimates [table] Table

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667 Legal Entity [Axis] Axis dei:LegalEntityAxis
668 Entity [Domain] Member dei:EntityDomain
669 Disclosure of changes in accounting estimates [line items] LineItems ifrs-full:DisclosureOfChangesInAccountingEstimatesLineItems
670 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
671 1073 - Disclosure - Segment Reporting - Disclosure of Operating Segment Information (Detail) Network

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672 Disclosure of operating segments [table] Table

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673 Legal Entity [Axis] Axis dei:LegalEntityAxis
674 Entity [Domain] Member dei:EntityDomain
675 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
676 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
677 Cancer Immunotherapy [member] Member ifrs-full:OperatingSegmentsMember
678 Unallocated [member] Member ifrs-full:UnallocatedAmountsMember
679 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
680 Revenue Abstract ifrs-full:RevenueAbstract
681 License revenue Concept (Monetary) For Period Credit ifrs-full:LicenceFeeIncome
682 Other income Abstract immp:OtherIncome1Abstract
683 Miscellaneous income Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
684 Grant income Concept (Monetary) For Period Credit ifrs-full:RevenueFromGovernmentGrants
685 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
686 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
687 Total revenue and other income Concept (Monetary) For Period Credit immp:RevenueAndOtherIncome
688 Segment Result Concept (Monetary) For Period Credit immp:InterSegmentRevenues
689 Profit/(loss) before income tax expense Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
690 Income tax benefit Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
691 Loss after income tax expense Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
692 Total segment assets Concept (Monetary) As Of Debit ifrs-full:Assets
693 Total segment liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
694 1074 - Disclosure - Expenses - Disclosure of Expenses (Detail) Network

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695 Expenses [Table] Table

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696 Legal Entity [Axis] Axis dei:LegalEntityAxis
697 Entity [Domain] Member dei:EntityDomain
698 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
699 Intangible Assets [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
700 Research and Development [member] Member immp:ResearchAndDevelopmentMember
701 Intellectual Property Management [member] Member immp:IntellectualPropertyManagementMember
702 Patents [member] Member ifrs-full:BrandNamesMember
703 Intellectual Property Assets R&D [member] Member ifrs-full:IntangibleAssetsUnderDevelopmentMember
704 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
705 Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
706 Plant and Equipment [member] Member immp:PlantAndEquipmentsMember
707 Computers [member] Member ifrs-full:ComputerEquipmentMember
708 Furniture and Fittings [member] Member ifrs-full:FixturesAndFittingsMember
709 Expenses [Line Items] LineItems immp:ExpensesLineItems
710 Research & Development and Intellectual Property Abstract immp:ResearchAndDevelopmentAndIntellectualPropertyAbstract
711 Total Research & Development and Intellectual Property Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
712 Corporate administrative expenses Abstract immp:CorporateAdministrativeExpensesAbstract
713 Auditor's remuneration Concept (Monetary) For Period Debit ifrs-full:AuditorsRemuneration
714 Directors fee and employee expenses Concept (Monetary) For Period Debit immp:DirectorsFeeAndEmployeeExpenses
715 Employee share-based payment expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
716 US warrants transaction costs Concept (Monetary) For Period Debit immp:WarrantsTransactionCost
717 Administrative expenses Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
718 Total corporate administrative expenses Concept (Monetary) For Period Debit ifrs-full:GeneralAndAdministrativeExpense
719 Depreciation Abstract immp:Depreciation1Abstract
720 Total depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
721 Amortization Abstract immp:AccumulatedAmortizationAbstract
722 Total amortization Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
723 Total depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
724 (Gain)/loss on disposal of assets Abstract ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipmentAbstract
725 Plant and equipment Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
726 Finance expenses Abstract immp:FinanceCostsAbstract
727 Interest expenses Concept (Monetary) For Period Debit ifrs-full:InterestExpense
728 Finance expense Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
729 Net change in fair value of convertible note liability Concept (Monetary) For Period Debit ifrs-full:LossesOnChangeInFairValueOfDerivatives
730 Net change in fair value of warrants Concept (Monetary) For Period Debit immp:LossesOnChangeInFairValueOfWarrants
731 Loss on foreign exchange Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
732 Changes in fair value of comparability milestone Concept (Monetary) For Period Debit immp:ChangesInFairValueOfComparabilityMilestone
733 Share Based Payment to strategic investor Concept (Monetary) For Period Debit immp:ShareBasedPaymentToStrategicInvestor
734 1075 - Disclosure - Income Tax Expense - Disclosure of Income Tax Expense Benefit (Detail) Network

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735 Deferred Tax Assets And Liabilities [Table] Table

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736 Legal Entity [Axis] Axis dei:LegalEntityAxis
737 Entity [Domain] Member dei:EntityDomain
738 Deferred Tax Assets And Liabilities [line Items] LineItems immp:DeferredTaxAssetsAndLiabilitiesLineItems
739 Current tax Abstract immp:CurrentTaxExpenseIncomeAbstract
740 Current tax on profits for the year Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
741 Total current tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
742 Deferred income tax Abstract ifrs-full:DeferredTaxExpenseIncomeAbstract
743 Increase in deferred tax assets (note 12) Concept (Monetary) For Period Debit immp:IncreaseInDeferredTaxAssets
744 Decrease in deferred tax liabilities (note 12) Concept (Monetary) For Period Debit immp:DecreaseInDeferredTaxLiabilities
745 Total deferred tax (benefit)/expense Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
746 Income tax (benefit)/expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
747 1076 - Disclosure - Income Tax Expense - Disclosure of Reconciliation of Income Tax Expense to Prima Facie Tax Payable (Detail) Network

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748 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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749 Legal Entity [Axis] Axis dei:LegalEntityAxis
750 Entity [Domain] Member dei:EntityDomain
751 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
752 Loss before income tax expense Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
753 Tax at the Australian tax rate of 27.5% (2017 27.5% and 2016: 30%) Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
754 Tax effect amounts which are not deductible/(taxable) in calculating taxable income: Abstract ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract
755 Non-deductible share based payments Concept (Monetary) For Period Debit immp:NondeductibleShareBasedPayments
756 Other non-deductible expenses Concept (Monetary) For Period Debit immp:OtherNondeductibleExpenses
757 Non-assessable income Concept (Monetary) For Period Credit immp:NonassessableIncome
758 Capital listing fee Concept (Monetary) For Period Credit immp:CapitalListingFee
759 Difference in overseas tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
760 Income tax expense before adjustment Concept (Monetary) For Period Debit immp:IncomeTaxExpenseBeforeAdjustment
761 Net adjustment to deferred tax assets and liabilities for tax losses and temporary differences not recognized Concept (Monetary) For Period Debit immp:AdjustmentToDeferredTaxAssetsAndLiabilitiesForTaxLossesAndTemporaryDifferencesNotRecognized
762 Income tax (benefit)/expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
763 1077 - Disclosure - Income Tax Expense - Disclosure of Reconciliation of Income Tax Expense to Prima Facie Tax Payable (Parenthetical) (Detail) Network

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764 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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765 Legal Entity [Axis] Axis dei:LegalEntityAxis
766 Entity [Domain] Member dei:EntityDomain
767 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
768 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
769 Australia [member] Member country:AU
770 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
771 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
772 Immutep S.A.S. [member] Member immp:ImmutepSASMember
773 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
774 Corporate income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
775 1078 - Disclosure - Income Tax Expense - Disclosure of Deferred Tax Assets Liability Adjustments (Detail) Network

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776 Disclosure Of Deferred Tax Assets Liability Adjustments [Table] Table

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777 Legal Entity [Axis] Axis dei:LegalEntityAxis
778 Entity [Domain] Member dei:EntityDomain
779 Disclosure Of Deferred Tax Assets Liability Adjustments [Line Items] LineItems immp:DisclosureOfDeferredTaxAssetsLiabilityAdjustmentsLineItems
780 Deferred tax assets not recognized comprises temporary differences attributable to: Abstract ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract
781 Carried forward tax losses benefit Concept (Monetary) For Period Credit ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense
782 Temporary differences Concept (Monetary) For Period Credit ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense
783 Total deferred tax assets not recognized Concept (Monetary) As Of Debit immp:DeferredTaxAssetsUnrecognized
784 1079 - Disclosure - Income Tax Expense - Additional Information (Detail) Network

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785 Deferred Tax Assets And Liabilities [Table] Table

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786 Legal Entity [Axis] Axis dei:LegalEntityAxis
787 Entity [Domain] Member dei:EntityDomain
788 Deferred Tax Assets And Liabilities [line Items] LineItems immp:DeferredTaxAssetsAndLiabilitiesLineItems
789 Cumulative tax losses Concept (Monetary) For Period Debit immp:CumulativeTaxLosses
790 1080 - Disclosure - Cash and Cash Equivalents - Disclosure of Cash and Cash Equivalents (Detail) Network

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791 Disclosure Of Cash And Cash Equivalents [Table] Table

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792 Legal Entity [Axis] Axis dei:LegalEntityAxis
793 Entity [Domain] Member dei:EntityDomain
794 Disclosure of cash and cash equivalents [line items] LineItems immp:DisclosureOfCashAndCashEquivalentsLineItems
795 Cash on hand Concept (Monetary) As Of Debit ifrs-full:CashOnHand
796 Cash at bank Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
797 Cash on deposit Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents
798 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
799 1081 - Disclosure - Cash and Cash Equivalents - Additional Information (Detail) Network

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800 Disclosure Of Cash And Cash Equivalents [Table] Table

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801 Legal Entity [Axis] Axis dei:LegalEntityAxis
802 Entity [Domain] Member dei:EntityDomain
803 Range [axis] Axis ifrs-full:RangeAxis
804 Ranges [member] Member ifrs-full:RangesMember
805 Bottom of Range [member] Member ifrs-full:BottomOfRangeMember
806 Top of Range [member] Member ifrs-full:TopOfRangeMember
807 Disclosure of cash and cash equivalents [line items] LineItems immp:DisclosureOfCashAndCashEquivalentsLineItems
808 Interest rate Concept (Percent) As Of immp:InterestRateOnDeposit
809 1082 - Disclosure - Current Receivables - Disclosure of Current Receivables (Detail) Network

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810 Disclosure of Trade and Other Receivables [Table] Table

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811 Legal Entity [Axis] Axis dei:LegalEntityAxis
812 Entity [Domain] Member dei:EntityDomain
813 Disclosure of trade and other receivables [line items] LineItems immp:DisclosureOfTradeAndOtherReceivablesLineItems
814 GST receivable Concept (Monetary) As Of Debit ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax
815 Grant and other receivables Concept (Monetary) As Of Debit immp:GrantAndOtherReceivables
816 Current receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
817 1083 - Disclosure - Other Current Assets - Disclosure of Other Current Assets (Detail) Network

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818 Prepaid Expenses and Other Current Assets [Table] Table

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819 Legal Entity [Axis] Axis dei:LegalEntityAxis
820 Entity [Domain] Member dei:EntityDomain
821 Prepaid expenses and other current assets [line Items] LineItems immp:PrepaidExpensesAndOtherCurrentAssetsLineItems
822 Prepayments Concept (Monetary) As Of Debit ifrs-full:CurrentPrepayments
823 Capital raising costs Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
824 Security deposit Concept (Monetary) As Of Debit immp:CurrentSecurityDeposit
825 Accrued interest Concept (Monetary) As Of Debit immp:AccruedInterestCurrent
826 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
827 1084 - Disclosure - Non-Current Assets - Plant and Equipment - Disclosure of Non-Current Assets - Plant and Equipment (Detail) Network

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828 Disclosure of detailed information about property, plant and equipment [table] Table

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829 Legal Entity [Axis] Axis dei:LegalEntityAxis
830 Entity [Domain] Member dei:EntityDomain
831 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
832 Carrying amount [member] Member ifrs-full:CarryingAmountMember
833 Cost or Fair Value [member] Member ifrs-full:GrossCarryingAmountMember
834 Accumulated Amortization and Impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
835 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
836 Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
837 Plant and Equipment [member] Member immp:PlantAndEquipmentMember
838 Computers [member] Member ifrs-full:ComputerEquipmentMember
839 Furniture and Fittings [member] Member ifrs-full:FixturesAndFittingsMember
840 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
841 Opening net book amount Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
842 Exchange differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
843 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
844 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
845 Depreciation charge Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
846 Closing net book amount Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
847 1085 - Disclosure - Non-Current Assets - Intangibles - Disclosure of Non-Current Assets - Intangibles (Detail) Network

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848 Disclosure of detailed information about intangible assets [table] Table

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849 Legal Entity [Axis] Axis dei:LegalEntityAxis
850 Entity [Domain] Member dei:EntityDomain
851 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
852 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
853 Patents 1 [member] Member immp:Patents1Member
854 Intellectual Property Assets [member] Member immp:IntellectualPropertyAssetsMember
855 Goodwill [member] Member ifrs-full:GoodwillMember
856 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
857 Carrying amount [member] Member ifrs-full:CarryingAmountMember
858 Cost or Fair Value [member] Member ifrs-full:GrossCarryingAmountMember
859 Accumulated Depreciation Amortization [member] Member immp:AccumulatedDepreciationAmortizationMember
860 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
861 Opening net book amount Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
862 Exchange difference Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill
863 Amortization charge Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
864 Closing net book amount Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
865 1086 - Disclosure - Non-current Assets - Intangibles - Additional Information (Detail) Network

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866 Disclosure of detailed information about intangible assets [table] Table

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868 Entity [Domain] Member dei:EntityDomain
869 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
870 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
871 Patents, Trademark and License [member] Member immp:PatentsTrademarkAndLicenseMember
872 Intellectual Property Assets [member] Member immp:IntellectualPropertyAssetsMember
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875 Bottom of Range [member] Member ifrs-full:BottomOfRangeMember
876 Top of Range [member] Member ifrs-full:TopOfRangeMember
877 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
878 Intangible assets useful life Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
879 1087 - Disclosure - Deferred Tax Balances - Deferred Tax Assets (Detail) Network

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880 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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881 Legal Entity [Axis] Axis dei:LegalEntityAxis
882 Entity [Domain] Member dei:EntityDomain
883 Temporary Difference, Unused Tax Losses and Unused Tax Credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
884 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
885 Tax Losses [member] Member ifrs-full:UnusedTaxLossesMember
886 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
887 Total deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
888 Set-off of deferred tax liabilities pursuant to set-off provisions Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
889 Net deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
890 1088 - Disclosure - Deferred Tax Balances - Deferred Tax Liabilities (Detail) Network

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891 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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892 Legal Entity [Axis] Axis dei:LegalEntityAxis
893 Entity [Domain] Member dei:EntityDomain
894 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
895 Intangible assets Concept (Monetary) As Of Credit immp:DeferredTaxLiabilitiesIntangibleAssets
896 Total deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
897 Set-off of deferred tax liabilities pursuant to set-off provisions Concept (Monetary) As Of Credit ifrs-full:RegulatoryDeferralAccountCreditBalancesAndRelatedDeferredTaxLiability
898 Net deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
899 1089 - Disclosure - Deferred Tax Balances - Movements in Deferred Tax Balances (Detail) Network

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900 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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901 Legal Entity [Axis] Axis dei:LegalEntityAxis
902 Entity [Domain] Member dei:EntityDomain
903 Temporary Difference, Unused Tax Losses and Unused Tax Credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
904 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
905 Tax Losses [member] Member ifrs-full:UnusedTaxLossesMember
906 Intangible Assets [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
907 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
908 Deferred tax movement beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
909 (Charged)/credited Concept (Monetary) For Period Debit immp:DeferredIncomeTaxChargedCredited
910 - to profit or loss Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
911 Deferred tax movement ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
912 1090 - Disclosure - Current Liabilites - Trade and Other Payables (Detail) Network

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913 Disclosure of trade and other payables [Table] Table

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915 Entity [Domain] Member dei:EntityDomain
916 Disclosure of trade and other payables [line Items] LineItems immp:DisclosureOfTradeAndOtherPayablesLineItems
917 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
918 Other payables and accruals Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
919 Total trade and Other current payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
920 1091 - Disclosure - Non-Current Liabilities - US Warrant Liability - Schedule of US Warrant Non-Current Liabilities (Detail) Network

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921 Disclosure of detailed information about borrowings [table] Table

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922 Legal Entity [Axis] Axis dei:LegalEntityAxis
923 Entity [Domain] Member dei:EntityDomain
924 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
925 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
926 Warrants1[member] Member immp:Warrants1Member
927 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
928 Warrants fair value, Beginning balance Concept (Monetary) As Of Debit immp:FairValueOfWarrants
929 Fair value movements Concept (Monetary) For Period Debit ifrs-full:LossesOnChangeInFairValueOfDerivatives
930 Warrants fair value, Ending balance Concept (Monetary) As Of Debit immp:FairValueOfWarrants
931 1092 - Disclosure - Non Current Liabilities - US Warrant Liability - Additional Information (Detail) Network

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932 Disclosure of detailed information about borrowings [table] Table

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934 Entity [Domain] Member dei:EntityDomain
935 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
936 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
937 American Depository Shares [member] Member immp:AmericanDepositorySharesMember
938 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
939 Equity [member] Member ifrs-full:EquityMember
940 Concurrent Private Placement [member] Member immp:ConcurrentPrivatePlacementMember
941 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
942 Proceeds from issuance of American Depositary Shares and warrants Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures
943 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
944 Exercise price of warrants Concept (Share) For Period invest:InvestmentWarrantsExercisePrice
945 Warrants, expiration period Concept (Date) For Period immp:WarrantExpirationPeriod
946 1093 - Disclosure - Non Current Liabilities - US Warrant Liability - Summary of Fair Value of Warrants (Detail) Network

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947 Disclosure of detailed information about borrowings [table] Table

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948 Legal Entity [Axis] Axis dei:LegalEntityAxis
949 Entity [Domain] Member dei:EntityDomain
950 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
951 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
952 US Warrants [member] Member immp:USWarrantsMember
953 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
954 Historic volatility Concept (Percent) For Period ifrs-full:HistoricalVolatilityForSharesSignificantUnobservableInputsEntitysOwnEquityInstruments
955 Exercise price Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
956 Share price Concept (Monetary) For Period ifrs-full:WeightedAverageSharePriceShareOptionsGranted
957 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
958 Dividend yield Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
959 Fair value per warrant Concept (Share) For Period immp:FairValuePerWarrant
960 Fair value Concept (Monetary) As Of Debit immp:FairValueOfWarrants
961 1094 - Disclosure - Non Current Liabilities - Convertible Note - Summary of Convertible Note (Detail) Network

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962 Disclosure of detailed information about borrowings [table] Table

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963 Legal Entity [Axis] Axis dei:LegalEntityAxis
964 Entity [Domain] Member dei:EntityDomain
965 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
966 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
967 Convertible Note at Fair Value [member] Member immp:ConvertibleNoteAtFairValueMember
968 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
969 Convertible note at fair value at beginning of reporting period Concept (Monetary) As Of Credit immp:ConvertibleNotesNonCurrent
970 Net change in fair value Concept (Monetary) For Period Debit ifrs-full:LossesOnChangeInFairValueOfDerivatives
971 Convertible note at fair value at end of reporting period Concept (Monetary) As Of Credit immp:ConvertibleNotesNonCurrent
972 1095 - Disclosure - Non Current Liabilities - Convertible Note - Additional Information (Detail) Network

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973 Disclosure of detailed information about borrowings [table] Table

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975 Entity [Domain] Member dei:EntityDomain
976 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
977 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
978 Warrants Exercise Price One [member] Member immp:WarrantsExercisePriceOneMember
979 Warrants Exercise Price Two [member] Member immp:WarrantsExercisePriceTwoMember
980 Measurement [axis] Axis ifrs-full:MeasurementAxis
981 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
982 Present Value of the Contractual Cash Flows [member] Member immp:PresentValueOfTheContractualCashFlowsMember
983 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
984 Proceeds from Issuance of warrants and convertible notes Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures
985 Convertible Notes issued Concept (Monetary) For Period Credit ifrs-full:IssueOfConvertibleInstruments
986 Convertible Notes, Face value Concept (Monetary) As Of ifrs-full:NotionalAmount
987 Convertible notes exercise price Concept (Share) For Period immp:ConvertibleNotesExercisePrice
988 Interest rate Concept (Percent) For Period immp:ConvertibleNotesInterestRate
989 Number of shares each note is converted Concept (Shares) As Of immp:NumberOfSharesEachNoteIsConverted
990 Warrants granted to Ridgeback Concept (Shares) As Of immp:NumberOfWarrantsGranted
991 Exercise price Concept (Shares) As Of immp:WarrantsExercisePrice
992 Component of convertible note was initially recorded at fair value Concept (Monetary) As Of Credit immp:FairValueOfConvertibleNotes
993 Discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
994 1096 - Disclosure - Non Current Liabilities - Convertible Note - Summary of Assumptions Which were Based on Market Conditions that Existed at Grant Date (Detail) Network

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995 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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996 Legal Entity [Axis] Axis dei:LegalEntityAxis
997 Entity [Domain] Member dei:EntityDomain
998 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
999 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1000 Convertible Notes [member] Member immp:ConvertibleNotesMember
1001 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1002 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1003 Australian Government Securities Yields [member] Member immp:AustralianGovernmentSecuritiesYieldsMember
1004 Ten year Australian Government Securities Yield [member] Member immp:TenYearAustralianGovernmentSecuritiesYieldMember
1005 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1006 Historic volatility Concept (Percent) For Period ifrs-full:HistoricalVolatilityForSharesSignificantUnobservableInputsEntitysOwnEquityInstruments
1007 Share price Concept (Monetary) For Period ifrs-full:WeightedAverageSharePriceShareOptionsGranted
1008 Risk free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1009 Risk adjusted interest rate Concept (Percent) For Period ifrs-full:InterestRateSignificantUnobservableInputsEntitysOwnEquityInstruments
1010 Dividend yield Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
1011 1097 - Disclosure - Non Current Liabilities - Convertible Note - Summary of Fair Value of Convertible Notes (Detail) Network

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1012 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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1013 Legal Entity [Axis] Axis dei:LegalEntityAxis
1014 Entity [Domain] Member dei:EntityDomain
1015 Fair value as deemed cost [axis] Axis ifrs-full:FairValueAsDeemedCostAxis
1016 Aggregate of fair values [member] Member ifrs-full:AggregateOfFairValuesMember
1017 Note - Liability [member] Member immp:NoteLiabilityMember
1018 Conversion Feature - Equity [member] Member immp:ConversionFeatureEquityMember
1019 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1020 Fair value at issuance Concept (Monetary) As Of Credit immp:FairValueOfConvertibleNotesAtTimeOfIssuance
1021 Fair value movements Concept (Monetary) As Of Credit immp:FairValueOfConvertibleNotesMovement
1022 Fair value of convertible notes Concept (Monetary) As Of Credit immp:FairValueOfConvertibleNotes
1023 1098 - Disclosure - Current Liabilities - Employee Benefits - Summary of Detailed Information of Employee Benefits Current Liabilities (Detail) Network

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1024 Disclosure of defined benefit plans [table] Table

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1025 Legal Entity [Axis] Axis dei:LegalEntityAxis
1026 Entity [Domain] Member dei:EntityDomain
1027 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1028 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1029 Annual Leave [member] Member immp:AnnualLeaveMember
1030 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1031 Employee benefits Concept (Monetary) As Of Credit immp:EmployeeBenefitsCurrent
1032 1099 - Disclosure - Non Current Liabilities - Employee Benefits - Summary of Detailed Information of Employee Benefits Non Current Liabilities (Detail) Network

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1033 Disclosure of defined benefit plans [table] Table

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1034 Legal Entity [Axis] Axis dei:LegalEntityAxis
1035 Entity [Domain] Member dei:EntityDomain
1036 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
1037 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
1038 Long Service Leave [member] Member immp:LongServiceLeaveMember
1039 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1040 Employee benefits Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisionsForEmployeeBenefits
1041 1100 - Disclosure - Contributed Equity - Summary of Contributed Equity (Detail) Network

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1042 Disclosure of classes of share capital [table] Table

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1043 Legal Entity [Axis] Axis dei:LegalEntityAxis
1044 Entity [Domain] Member dei:EntityDomain
1045 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1046 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1047 Ordinary Shares [member] Member ifrs-full:OrdinarySharesMember
1048 Options over ordinary sharesv - Listed [Member] Member immp:OptionsOverOrdinarySharesListedMember
1049 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1050 Contributed equity Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1051 1101 - Disclosure - Contributed Equity - Summary of Ordinary Shares (Detail) Network

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1052 Disclosure of classes of share capital [table] Table

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1053 Legal Entity [Axis] Axis dei:LegalEntityAxis
1054 Entity [Domain] Member dei:EntityDomain
1055 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1056 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1057 Ordinary Shares [member] Member ifrs-full:OrdinarySharesMember
1058 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1059 At the beginning of reporting period, shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1060 Number of shares issued during year, shares Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1061 Number of exercise of options and warrants, shares (Shares issued during the year) Concept (Shares) For Period immp:NumberOfSharesIssuedDuringPeriodExerciseOfOptionsAndWarrants
1062 At reporting date, shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1063 At the beginning of reporting period, amount Concept (Monetary) As Of Credit ifrs-full:Equity
1064 Shares issued during year, amount Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
1065 Exercise of options and warrants, amount (Shares issued during the year) Concept (Monetary) For Period Credit immp:IncreaseDecreaseThroughExerciseOfOptionsAndWarrants
1066 Transaction costs relating to share issues, amount Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners
1067 At reporting date, amount Concept (Monetary) As Of Credit ifrs-full:Equity
1068 1102 - Disclosure - Contributed Equity - Summary of Shares Issued (Detail) Network

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1069 Disclosure of classes of share capital [table] Table

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1070 Legal Entity [Axis] Axis dei:LegalEntityAxis
1071 Entity [Domain] Member dei:EntityDomain
1072 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1073 Equity [member] Member ifrs-full:EquityMember
1074 Issued Equity [member] Member ifrs-full:IssuedCapitalMember
1075 Shares Issued Or Purchased By Type [Axis] Axis immp:SharesIssuedOrPurchasedByTypeAxis
1076 Shares Issued Or Purchased By Type [Domain] Member immp:SharesIssuedOrPurchasedByTypeDomain
1077 0.01 Issue Price member] Member immp:ZeroPointZeroOneIssuePriceMember
1078 0.03 Issue Price member] Member immp:ZeroPointZeroThreeIssuePriceMember
1079 0.021 Issue Price member] Member immp:ZeroPointZeroTwoOneIssuePriceMember
1080 0.05 Issue Price [member] Member immp:ZeroPointZeroFiveIssuePriceMember
1081 0.20 Issue Price [member] Member immp:ZeroPointTwoZeroIssuePriceMember
1082 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1083 Shares issued under Securities Purchase Agreement Concept (Shares) For Period immp:SharesIssuedUnderSecuritiesPurchaseAgreement
1084 Number of performance right exercised Concept (Shares) For Period immp:NumberOfPerformanceRightsExercised
1085 Share placement Concept (Shares) For Period immp:NumberOfSharePlacement
1086 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1087 Shares issued under Securities Purchase Agreement Concept (Share) For Period immp:SharesIssuedPricePerShare1
1088 Issue price of performance rights exercised Concept (Share) For Period immp:PerformanceRightsExercisedPricePerShare
1089 Share placement Concept (Share) For Period immp:SharePlacementPricePerShare
1090 Shares issued under Securities Purchase Agreement Concept (Monetary) For Period Credit immp:SharesIssuedUnderSecuritiesPurchaseAgreementAmount
1091 Performance rights exercised Concept (Monetary) For Period Credit immp:AmountOfPerformanceRightsExercised
1092 Share placement Concept (Monetary) For Period Credit immp:SharePlacementAmount
1093 Issued capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1094 Number of options exercised Concept (Shares) For Period immp:NumberOfOptionsExercised
1095 Number of exercise of options and warrants, shares (Shares issued during the year) Concept (Shares) For Period immp:NumberOfSharesIssuedDuringPeriodExerciseOfOptionsAndWarrants
1096 Issue price of performance right exercised Concept (Share) For Period immp:PerformanceRightExercisedIssuePricePerShare
1097 Issue price of options exercised Concept (Share) For Period immp:OptionsExercisedPricePerShare
1098 Options exercised Concept (Monetary) For Period Credit immp:AmountOfOptionsExercised
1099 1103 - Disclosure - Contributed Equity - Summary of Unlisted Options (Detail) Network

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1100 Disclosure of classes of share capital [table] Table

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1101 Legal Entity [Axis] Axis dei:LegalEntityAxis
1102 Entity [Domain] Member dei:EntityDomain
1103 Maturity [axis] Axis ifrs-full:MaturityAxis
1104 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1105 Unlisted Options Expired on December 12, 2018 [member] Member immp:UnlistedOptionsExpiredOnTwelveDecemberTwoThousandEighteenMember
1106 Unlisted Options Expired on August 4, 2020 [member] Member immp:UnlistedOptionsExpiredOnFourAugustTwoThousandTwentyMember
1107 Unlisted Options Expired on October 30, 2020 [member] Member immp:UnlistedOptionsExpiredOnThirtyOctoberTwoThousandTwentyMember
1108 Unlisted Options Expired on March 7, 2021 [member] Member immp:UnlistedOptionsExpiredOnSevenMarchTwoThousandTwentyOneMember
1109 Unlisted Options Expired on August 4, 2025 [member] Member immp:UnlistedOptionsExpiredOnFourAugustTwoThousandTwentyFiveMember
1110 Unlisted Options Expired on November 5, 2023 [member] Member immp:UnlistedOptionsExpiredOnUnlistedOptionsExpiredOnFifthNovemberTwoThousandAndTwentyThreeMember
1111 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1112 Expiration Date Concept (Date) For Period immp:UnlistedOptionsExpirationDate
1113 Exercise Price Concept (Share) For Period immp:UnlistedOptionsExercisePrice
1114 Number Concept (Decimal) As Of immp:NumberOfUnlistedOptions
1115 1104 - Disclosure - Contributed Equity - Summary of Unlisted Options (Parenthetical) (Detail) Network

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1116 Disclosure of classes of share capital [table] Table

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1117 Legal Entity [Axis] Axis dei:LegalEntityAxis
1118 Entity [Domain] Member dei:EntityDomain
1119 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1120 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1121 American Depository Shares [member] Member immp:AmericanDepositorySharesMember
1122 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1123 Description of American depository shares Concept (Text/String) For Period ifrs-full:DescriptionOfOtherEquityInterest
1124 1105 - Disclosure - Contributed Equity - Additional Information (Detail) Network

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1125 Disclosure of classes of share capital [table] Table

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1126 Legal Entity [Axis] Axis dei:LegalEntityAxis
1127 Entity [Domain] Member dei:EntityDomain
1128 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1129 Share buy-back Concept (Integer) For Period immp:NumberOfShareBuyBack
1130 1106 - Disclosure - Equity - Reserves and Retained Earnings - Summary of Equity Reserves and Retained Earnings (Detail) Network

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1131 Disclosure of reserves within equity [table] Table

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1132 Legal Entity [Axis] Axis dei:LegalEntityAxis
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1134 Disclosure of reserves within equity [line items] LineItems ifrs-full:DisclosureOfReservesWithinEquityLineItems
1135 Reserves Abstract ifrs-full:DisclosureOfReservesWithinEquityAbstract
1136 Options issued reserve Concept (Monetary) As Of Credit immp:ReserveOfOptionsIssued
1137 Conversion feature of convertible note reserve Concept (Monetary) As Of Credit immp:ReserveOfConversionFeatureOfConvertibleNoteReserve
1138 Foreign currency translation reserve Concept (Monetary) As Of Credit ifrs-full:ReserveOfExchangeDifferencesOnTranslation
1139 Share-based payment reserve Concept (Monetary) As Of Credit ifrs-full:ReserveOfSharebasedPayments
1140 Ending balance Concept (Monetary) As Of Credit ifrs-full:OtherReserves
1141 Movement in options issued reserve were as follows: Abstract immp:MovementInOptionsIssuedReserveAbstract
1142 Opening balance Concept (Monetary) As Of Credit ifrs-full:ReserveOfChangeInValueOfTimeValueOfOptions
1143 Ending balance Concept (Monetary) As Of Credit ifrs-full:ReserveOfChangeInValueOfTimeValueOfOptions
1144 Movements in conversion feature of convertible note reserve: Abstract immp:MovementsInConversionFeatureOfConvertibleNoteReserveAbstract
1145 Opening balance Concept (Monetary) As Of Credit immp:ReserveOfConversionFeatureOfConvertibleNoteReserve
1146 Ending balance Concept (Monetary) As Of Credit immp:ReserveOfConversionFeatureOfConvertibleNoteReserve
1147 Movement in foreign currency translation reserve were as follows: Abstract immp:MovementInForeignCurrencyTranslationReserveAbstract
1148 Opening balance Concept (Monetary) As Of Credit ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreads
1149 Currency translation differences arising during the year Concept (Monetary) For Period Credit immp:CurrencyTranslationDifferencesArisingDuringYear
1150 Ending balance Concept (Monetary) As Of Credit ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreads
1151 Movement in share-based payment reserve were as follows: Abstract immp:MovementInSharebasedPaymentReserveAbstract
1152 Opening balance Concept (Monetary) As Of Credit ifrs-full:ReserveOfSharebasedPayments
1153 Employee options issued during the year Concept (Monetary) For Period Credit immp:EmployeeOptionsIssuedDuringYear
1154 Exercise of vested performance rights Concept (Monetary) For Period Credit immp:ExerciseOfVestedPerformanceRights
1155 Ending balance Concept (Monetary) As Of Credit ifrs-full:ReserveOfSharebasedPayments
1156 Movement in accumulated losses were as follows: Abstract immp:MovementInAccumulatedLossesAbstract
1157 Opening balance Concept (Monetary) As Of Credit immp:ReserveOfAccumulatedLosses
1158 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1159 Ending balance Concept (Monetary) As Of Credit immp:ReserveOfAccumulatedLosses
1160 1107 - Disclosure - Equity - Reserves and Retained Earnings - Additional Information (Detail) Network

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1161 Disclosure of reserves within equity [table] Table

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1162 Legal Entity [Axis] Axis dei:LegalEntityAxis
1163 Entity [Domain] Member dei:EntityDomain
1164 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1165 Equity [member] Member ifrs-full:EquityMember
1166 On or Before 4 August 2025 [member] Member immp:OnOrBeforeFourAugustTwoThousandTwentyFiveMember
1167 On or Before 4 August 2020 [member] Member immp:OnOrBeforeFourAugustTwoThousandTwentyMember
1168 On or Before October 2, 2017 and December 12, 2018 [member] Member immp:OnOrBeforeOctoberTwoTwoThousandSeventeenAndDecemberTwelveTwoThousandEighteenMember
1169 Disclosure of reserves within equity [line items] LineItems ifrs-full:DisclosureOfReservesWithinEquityLineItems
1170 Warrants granted to Ridgeback Capital Investments Concept (Shares) For Period immp:WarrantsGranted
1171 Warrants exercise price Concept (Share) For Period immp:WarrantsGrantedExercisePrice
1172 Warants exercised by vendors of Immutep S.A. Concept (Shares) As Of immp:WarrantsExercised
1173 1108 - Disclosure - Dividends - Additional Information (Detail) Network

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1174 Disclosure of Dividends [Table] Table

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1175 Legal Entity [Axis] Axis dei:LegalEntityAxis
1176 Entity [Domain] Member dei:EntityDomain
1177 Disclosure of Dividends [line Items] LineItems immp:DisclosureOfDividendsLineItems
1178 Dividends paid Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOrdinaryShares
1179 Dividends declared Concept (Monetary) As Of Credit ifrs-full:DividendPayables
1180 1109 - Disclosure - Key Management Personnel Disclosures - Summary of Directors and Key Management Personnel Compensation (Detail) Network

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1181 Disclosure of key management personnel compensation [table] Table

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1182 Legal Entity [Axis] Axis dei:LegalEntityAxis
1183 Entity [Domain] Member dei:EntityDomain
1184 Disclosure of key management personnel compensation [line items] LineItems immp:DisclosureOfKeyManagementPersonnelCompensationLineItems
1185 Short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1186 Long-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationOtherLongtermBenefits
1187 Post-employment benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1188 Share-based payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
1189 Total employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1190 1110 - Disclosure - Key Management Personnel Disclosures - Additional Information (Detail) Network

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1191 Disclosure Of Number And Weighted Average Exercise Price Of Outstanding Share Options [Table] Table

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1192 Legal Entity [Axis] Axis dei:LegalEntityAxis
1193 Entity [Domain] Member dei:EntityDomain
1194 Title of individual 1 [Axis] Axis immp:TitleOfIndividual1Axis
1195 Government Grants [Domain] Member immp:GovernmentGrantsDomain
1196 Directors and other Key Management Personnel [member] Member immp:DirectorsAndOtherKeyManagementPersonnelMember
1197 Disclosure of number and weighted average exercise price of outstanding share options [line items] LineItems immp:DisclosureOfNumberAndWeightedAverageExercisePriceOfOutstandingShareOptionsLineItems
1198 Number of shares granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1199 1111 - Disclosure - Key Management Personnel Disclosures - Summary of Number of Shares Held in Company (Detail) Network

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1200 Changes In Number Of Shares Outstanding [Table] Table

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1202 Entity [Domain] Member dei:EntityDomain
1203 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1204 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1205 Dr Russell Howard [member] Member immp:DrRussellHowardMember
1206 Mr Pete Meyers [member] Member immp:MrPeteMeyersMember
1207 Mr Marc Voigt [member] Member immp:MrMarcVoigtMember
1208 Mr grant chamberlain [Member] Member immp:MrGrantChamberlainMember
1209 Ms Lucy Turnbull A O [member] Member immp:MsLucyTurnbullAOMember
1210 Mr Albert Wong [member] Member immp:MrAlbertWongMember
1211 Ms Deanne Miller [member] Member immp:MsDeanneMillerMember
1212 Dr Frederic Triebel [member] Member immp:DrFredericTriebelMember
1213 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1214 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1215 Ordinary Shares [member] Member ifrs-full:OrdinarySharesMember
1216 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1217 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1218 American Depository Receipts [member] Member immp:AmericanDepositoryReceiptsMember
1219 Changes In Number Of Shares Outstanding [line items] LineItems immp:ChangesInNumberOfSharesOutstandingLineItems
1220 Balance at start of the year Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1221 Received during the year on exercise of performance rights Concept (Shares) For Period immp:NumberOfOtherEquityInstrumentsReceivedOnExerciseOfPerformanceRightsInShareBasedPaymentArrangements
1222 Received during the year on the exercise of options Concept (Shares) For Period immp:NumberOfOtherEquityInstrumentsReceivedOnExerciseOfOptionsRightsInShareBasedPaymentArrangements
1223 Other changes during the year Concept (Shares) For Period immp:NumberOfOtherEquityInstrumentsOtherChangesInShareBasedPaymentArrangements
1224 Balance at end of the end year Number Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1225 1112 - Disclosure - Key Management Personnel Disclosures - Summary of Number of Options Over Ordinary Shares in Parent Entity (Detail) Network

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1226 Disclosure Of Number And Weighted Average Exercise Price Of Outstanding Share Options [Table] Table

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1227 Legal Entity [Axis] Axis dei:LegalEntityAxis
1228 Entity [Domain] Member dei:EntityDomain
1229 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1230 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1231 Ms Lucy Turnbull A O [member] Member immp:MsLucyTurnbullAOMember
1232 Mr Albert Wong [member] Member immp:MrAlbertWongMember
1233 Dr Russell Howard [member] Member immp:DrRussellHowardMember
1234 Mr Pete Meyers [member] Member immp:MrPeteMeyersMember
1235 Mr Marc Voigt [member] Member immp:MrMarcVoigtMember
1236 Ms Deanne Miller [member] Member immp:MsDeanneMillerMember
1237 Dr Frederic Triebel [member] Member immp:DrFredericTriebelMember
1238 Mr grant chamberlain [Member] Member immp:MrGrantChamberlainMember
1239 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1240 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1241 Options over ordinary shares [member] Member immp:OptionsOverOrdinarySharesMember
1242 Disclosure of number and weighted average exercise price of outstanding share options [line items] LineItems immp:DisclosureOfNumberAndWeightedAverageExercisePriceOfOutstandingShareOptionsLineItems
1243 Balance at start of the year Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1244 Granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1245 Exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1246 Other changes Concept (Decimal) As Of immp:NumberOfShareOptionsOtherChangesInShareBasedPaymentArrangement
1247 Balance at end of the year Number Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1248 Vested and exercisable Concept (Decimal) As Of immp:NumberOfShareOptionsOrOtherEquityInstrumentsVestedAndExercisableInShareBasedPaymentArrangement
1249 Unvested Concept (Decimal) As Of immp:NumberOfShareOptionsUnvestedInShareBasedPaymentArrangement
1250 1113 - Disclosure - Key Management Personnel Disclosures - Summary of Number of Performance Rights Over Ordinary Shares in Parent Entity (Detail) Network

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1251 Disclosure of key management personnel compensation [table] Table

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1253 Entity [Domain] Member dei:EntityDomain
1254 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1255 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1256 Performance rights [member] Member immp:PerformanceRightsMember
1257 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1258 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1259 Mr Pete Meyers [member] Member immp:MrPeteMeyersMember
1260 Mr Marc Voigt [member] Member immp:MrMarcVoigtMember
1261 Mr grant chamberlain [Member] Member immp:MrGrantChamberlainMember
1262 Ms Deanne Miller [member] Member immp:MsDeanneMillerMember
1263 Dr Frederic Triebel [member] Member immp:DrFredericTriebelMember
1264 Disclosure of key management personnel compensation [line items] LineItems immp:DisclosureOfKeyManagementPersonnelCompensationLineItems
1265 Balance at start of the year Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1266 Granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1267 Exercised Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1268 Balance at end of the end year Number Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1269 Unvested Concept (Decimal) As Of immp:NumberOfOtherEquityInstrumentsUnvestedInShareBasedPaymentArrangement
1270 1114 - Disclosure - Remuneration of Auditors - Summary of Detailed Information About Auditors Remuneration (Detail) Network

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1271 Auditors Remuneration [Table] Table

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1272 Legal Entity [Axis] Axis dei:LegalEntityAxis
1273 Entity [Domain] Member dei:EntityDomain
1274 Pricewaterhouse Coopers Australia [member] Member immp:PricewaterhouseCoopersAustraliaMember
1275 Auditors remuneration [line items] LineItems immp:AuditorsRemunerationLineItems
1276 Audit fees Abstract immp:AuditFeesAbstract
1277 Audit or review of the financial report Concept (Monetary) For Period Debit ifrs-full:AuditorsRemunerationForAuditServices
1278 Other audit and assurance services in relation to regulatory filings overseas Concept (Monetary) For Period Debit ifrs-full:AuditorsRemunerationForOtherServices
1279 Total remuneration of PricewaterhouseCoopers Australia Concept (Monetary) For Period Debit ifrs-full:AuditorsRemuneration
1280 1115 - Disclosure - Contingent Liabilities - Additional Information (Detail) Network

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1281 Disclosure of contingent liabilities [table] Table

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1283 Entity [Domain] Member dei:EntityDomain
1284 Disclosure of contingent liabilities [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
1285 Contingent liabilities Concept (Monetary) As Of ifrs-full:EstimatedFinancialEffectOfContingentLiabilities
1286 1116 - Disclosure - Commitments for Expenditure - Schedule of Operating Lease Commitment (Detail) Network

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1287 Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [table] Table

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1288 Legal Entity [Axis] Axis dei:LegalEntityAxis
1289 Entity [Domain] Member dei:EntityDomain
1290 Maturity [axis] Axis ifrs-full:MaturityAxis
1291 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1292 Less than one year [member] Member ifrs-full:NotLaterThanOneYearMember
1293 Between one and five years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanFiveYearsMember
1294 Disclosure of amounts to be recovered or settled after twelve months for classes of assets and liabilities that contain amounts to be recovered or settled both no more and more than twelve months after reporting date [line items] LineItems ifrs-full:DisclosureOfAmountsToBeRecoveredOrSettledAfterTwelveMonthsForClassesOfAssetsAndLiabilitiesThatContainAmountsToBeRecoveredOrSettledBothNoMoreAndMoreThanTwelveMonthsAfterReportingDateLineItems
1295 Lease commitments - operating Concept (Monetary) For Period Debit immp:MinimumOperatingLeasePaymentsRecognisedAsExpense
1296 1117 - Disclosure - Related Party Transactions - Schedule of Transaction Occur with Related Parties (Detail) Network

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1297 Disclosure of transactions between related parties [table] Table

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1298 Legal Entity [Axis] Axis dei:LegalEntityAxis
1299 Entity [Domain] Member dei:EntityDomain
1300 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1301 In addition to Director's fees, Consultancy fees for post directorship executive duties were paid to Barton Place Pty Ltd, a corporation in which Albert Wong has a beneficial interest Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
1302 1118 - Disclosure - Related Party Transactions - Additional Information (Detail) Network

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1303 Disclosure of transactions between related parties [table] Table

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1304 Legal Entity [Axis] Axis dei:LegalEntityAxis
1305 Entity [Domain] Member dei:EntityDomain
1306 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1307 Loans to or from related parties Concept (Monetary) For Period Debit ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties
1308 Receivables from or trade payables to related parties Concept (Monetary) As Of Debit immp:ReceivablesAndPayablesDueFromRelatedParties
1309 1119 - Disclosure - Subsidiaries - Summary of Subsidiaries (Detail) Network

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1310 Disclosure of subsidiaries [table] Table

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1311 Legal Entity [Axis] Axis dei:LegalEntityAxis
1312 Entity [Domain] Member dei:EntityDomain
1313 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1314 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1315 Immutep U.S., Inc [member] Member immp:ImmutepUSIncMember
1316 PRR Middle East FZ LLC [member] Member immp:PrrMiddleEastFZLLCMember
1317 Immutep GmbH [member] Member immp:ImmutepGmbHMember
1318 Immutep Australia Pty Ltd [member] Member immp:ImmutepAustraliaPtyLtdMember
1319 Immutep IP Pty Ltd [member] Member immp:ImmutepIPPtyLtdMember
1320 Immutep S.A.S. [member] Member immp:ImmutepSASMember
1321 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
1322 Country of incorporation Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfSubsidiary
1323 Equity holdings Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
1324 1120 - Disclosure - Events Occurring After the Reporting Date - Additional Information (Detail) Network

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1325 Disclosure of non-adjusting events after reporting period [table] Table

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1326 Legal Entity [Axis] Axis dei:LegalEntityAxis
1327 Entity [Domain] Member dei:EntityDomain
1328 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1329 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1330 Subsequent Event [Member] Member us-gaap:SubsequentEventMember
1331 Disclosure of non-adjusting events after reporting period [line items] LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
1332 Cash rebate received Concept (Monetary) For Period Credit immp:CashRebateReceived
1333 Proceeds from exercising of ADS Warrants Concept (Monetary) For Period Debit immp:ProceedsFromExerciseOfAmericanDepositoryShareWarrants
1334 1121 - Disclosure - Reconciliation of Loss After Income Tax to Net Cash Used in Operating Activities - Summary of Reconciliation of Loss After Income Tax to Net Cash Used in Operating Activities (Detail) Network

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1335 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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1336 Legal Entity [Axis] Axis dei:LegalEntityAxis
1337 Entity [Domain] Member dei:EntityDomain
1338 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1339 Loss after income tax expense for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1340 Adjustments for: Abstract immp:AdjustmentsForNetCashFromOperatingActivitiesAbstract
1341 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1342 Add back share based payments Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
1343 Changes in fair value of US investor warrant Concept (Monetary) For Period Debit immp:LossesOnChangeInFairValueOfWarrants
1344 US warrants transaction costs Concept (Monetary) For Period Debit immp:WarrantsTransactionCost
1345 Non-cash share based payment to strategic investor Concept (Monetary) For Period Debit immp:ShareBasedPaymentToStrategicInvestor
1346 Changes in fair value of comparability milestone Concept (Monetary) For Period Debit immp:ChangesInFairValueOfComparabilityMilestone
1347 Add back (gain) on disposal of assets Concept (Monetary) For Period Credit immp:GainOnDisposalOfAssets
1348 Add back Non-cash finance expenses Concept (Monetary) For Period Credit immp:AddBackNoncashFinanceExpenses
1349 Unrealized (gain)/loss on exchange through the profit and loss Concept (Monetary) For Period Credit immp:UnrealizedGainLossOnExchangeThroughTheProfitAndLoss
1350 Net change in fair value of convertible note liability Concept (Monetary) For Period Debit ifrs-full:LossesOnChangeInFairValueOfDerivatives
1351 Change in operating assets and liabilities: Abstract immp:ChangeInOperatingAssetsAndLiabilitiesAbstract
1352 (Increase) in current receivables Concept (Monetary) For Period Debit immp:AdjustmentsForDecreaseIncreaseInCurrentTradeAccountReceivable
1353 Decrease/(increase) in other operating assets Concept (Monetary) For Period Debit immp:AdjustmentsForDecreaseIncreaseInCurrentAccountReceivable
1354 (Decrease)/increase in trade and other payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
1355 Increase/(decrease) in employee benefits Concept (Monetary) For Period Debit immp:AdjustmentsForIncreaseDecreaseInCurrentEmployeeBenefitLiabilities
1356 (Decrease)/increase in income tax payable Concept (Monetary) For Period Debit immp:AdjustmentsForDecreaseIncreaseInIncomeTaxPayable
1357 (Decrease) in deferred tax liability Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInDeferredTaxLiabilityAsset
1358 Net cash flows used in operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
1359 1122 - Disclosure - Earnings Per Share - Summary of Earnings Per Share (Detail) Network

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1360 Earnings per share [table] Table

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1361 Legal Entity [Axis] Axis dei:LegalEntityAxis
1362 Entity [Domain] Member dei:EntityDomain
1363 Earnings per share [line items] LineItems ifrs-full:EarningsPerShareLineItems
1364 Loss after income tax attributable to the owners of Immutep Limited Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
1365 Weighted average number of ordinary shares used in calculating basic earnings per share Concept (Shares) For Period ifrs-full:WeightedAverageShares
1366 Weighted average number of ordinary shares used in calculating diluted earnings per share Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
1367 Basic earnings per share Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
1368 Diluted earnings per share Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
1369 1123 - Disclosure - Earnings Per Share - Summary of Antidilutive Securities Excluded from Computation of Earnings Per Share (Detail) Network

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1370 Antidilutive securities excluded from computation of earnings per share [Table] Table

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1372 Entity [Domain] Member dei:EntityDomain
1373 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1374 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1375 Listed Options [member] Member immp:ListedOptionMember
1376 Unlisted Options [member] Member immp:UnlistedOptionsMember
1377 Convertible Notes [member] Member immp:ConvertibleNotesMember
1378 Performance rights [member] Member immp:PerformanceRightsMember
1379 Non-Executive Director Rights [member] Member immp:NonexecutiveDirectorRightsMember
1380 US Warrants [member] Member immp:USWarrantsMember
1381 Earnings per share [line items] LineItems ifrs-full:EarningsPerShareLineItems
1382 Anti-dilutive securities excluded from computation of earnings per share Concept (Shares) For Period immp:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount1
1383 1124 - Disclosure - Earnings Per Share - Summary of Antidilutive Securities Excluded from Computation of Earnings Per Share (Parenthetical) (Detail) Network

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1384 Antidilutive securities excluded from computation of earnings per share [Table] Table

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1388 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1389 US Warrants [member] Member immp:USWarrantsMember
1390 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1391 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1392 American Depository Shares [member] Member immp:AmericanDepositorySharesMember
1393 Earnings per share [line items] LineItems ifrs-full:EarningsPerShareLineItems
1394 Description of American depository shares Concept (Text/String) For Period ifrs-full:DescriptionOfOtherEquityInterest
1395 1125 - Disclosure - Share - Based Payment - Summaries of All STI and LTI Performance Rights Granted (Detail) Network

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1396 Disclosure of other equity instruments [Table] Table

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