v3.23.3

Commitments and Contingencies (Narrative) (Details) - CRO Agreement [Member] | 12 Months Ended
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Jun. 30, 2023 USD ($)
Costs incurred | $ 1,209,000
Additional costs committed | $ 171,000

X
- Definition The amount of estimated additional cost on development as at end of the reporting period. + References No definition available. + Details
Name: | ibio_EstimatedAdditionalCostOnDevelopment
Namespace Prefix: | ibio_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of other research and development expense. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 730 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482916/730-10-50-1 + Details
Name: | us-gaap_OtherResearchAndDevelopmentExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_TypeOfArrangementAxis=ibio_CroAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |