Quarterly report pursuant to Section 13 or 15(d)

Significant Vendor (Details Textual)

v2.4.1.9
Significant Vendor (Details Textual) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Jun. 30, 2013
Jun. 30, 2014
May 31, 2015
Significant Vendor [Line Items]              
Accounts Payable, Current $ 815,000us-gaap_AccountsPayableCurrent   $ 815,000us-gaap_AccountsPayableCurrent     $ 297,000us-gaap_AccountsPayableCurrent  
Accrued Liabilities, Current 405,000us-gaap_AccruedLiabilitiesCurrent   405,000us-gaap_AccruedLiabilitiesCurrent     98,000us-gaap_AccruedLiabilitiesCurrent  
Research and Development Expense 815,000us-gaap_ResearchAndDevelopmentExpense 343,000us-gaap_ResearchAndDevelopmentExpense 2,731,000us-gaap_ResearchAndDevelopmentExpense 1,480,000us-gaap_ResearchAndDevelopmentExpense      
General and Administrative Expense Settlement 1,222,000us-gaap_GeneralAndAdministrativeExpense 951,000us-gaap_GeneralAndAdministrativeExpense 3,574,000us-gaap_GeneralAndAdministrativeExpense 2,950,000us-gaap_GeneralAndAdministrativeExpense      
Revenue, Net, Total 349,000us-gaap_SalesRevenueNet 0us-gaap_SalesRevenueNet 1,535,000us-gaap_SalesRevenueNet 0us-gaap_SalesRevenueNet      
Settlement Agreement [Member]              
Significant Vendor [Line Items]              
Accounts Payable, Current         1,200,000us-gaap_AccountsPayableCurrent
/ us-gaap_FinancialInstrumentAxis
= ibio_SettlementAgreementMember
   
Accrued Liabilities, Current         1,700,000us-gaap_AccruedLiabilitiesCurrent
/ us-gaap_FinancialInstrumentAxis
= ibio_SettlementAgreementMember
   
Research and Development Expense     1,040,000us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_FinancialInstrumentAxis
= ibio_SettlementAgreementMember
       
Prepaid Expense         1,000,000us-gaap_PrepaidExpenseCurrentAndNoncurrent
/ us-gaap_FinancialInstrumentAxis
= ibio_SettlementAgreementMember
   
General and Administrative Expense Settlement     700,000us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_FinancialInstrumentAxis
= ibio_SettlementAgreementMember
       
Earnings From Reversal of Expenses     1,900,000ibio_EarningsFromReversalOfExpenses
/ us-gaap_FinancialInstrumentAxis
= ibio_SettlementAgreementMember
       
Interest Expense, Total     122,000us-gaap_InterestExpense
/ us-gaap_FinancialInstrumentAxis
= ibio_SettlementAgreementMember
       
Amended Agreement [Member]              
Significant Vendor [Line Items]              
Research and Development Expense         1,007,000us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_FinancialInstrumentAxis
= ibio_AmendedAgreementMember
   
General and Administrative Expense Settlement         1,007,000us-gaap_GeneralAndAdministrativeExpense
/ us-gaap_FinancialInstrumentAxis
= ibio_AmendedAgreementMember
   
Revenue, Net, Total 349,000us-gaap_SalesRevenueNet
/ us-gaap_FinancialInstrumentAxis
= ibio_AmendedAgreementMember
  1,535,000us-gaap_SalesRevenueNet
/ us-gaap_FinancialInstrumentAxis
= ibio_AmendedAgreementMember
       
Fraunhofer [Member]              
Significant Vendor [Line Items]              
Accounts Payable, Current 341,000us-gaap_AccountsPayableCurrent
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
  341,000us-gaap_AccountsPayableCurrent
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
  2,900,000us-gaap_AccountsPayableCurrent
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
205,000us-gaap_AccountsPayableCurrent
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
0us-gaap_AccountsPayableCurrent
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
Accrued Liabilities, Current 325,000us-gaap_AccruedLiabilitiesCurrent
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
  325,000us-gaap_AccruedLiabilitiesCurrent
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
       
Research and Development Expense     1,535,000us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
375,000us-gaap_ResearchAndDevelopmentExpense
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
     
Royalty Expense     200,000us-gaap_RoyaltyExpense
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
       
Royalty Guarantees, Commitments, Amount 4,000,000us-gaap_RoyaltyGuaranteesCommitmentsAmount
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
  4,000,000us-gaap_RoyaltyGuaranteesCommitmentsAmount
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
       
Prepaid Expense         1,000,000us-gaap_PrepaidExpenseCurrentAndNoncurrent
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
   
Revenue, Net, Total     $ 348,000us-gaap_SalesRevenueNet
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember
$ 77,000us-gaap_SalesRevenueNet
/ us-gaap_CounterpartyNameAxis
= ibio_FraunhoferMember