Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

v3.10.0.1
Document And Entity Information - USD ($)
12 Months Ended
Jun. 30, 2018
Sep. 14, 2018
Dec. 29, 2017
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Jun. 30, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Entity Registrant Name iBio, Inc.    
Entity Central Index Key 0001420720    
Current Fiscal Year End Date --06-30    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Smaller Reporting Company    
Entity Public Float     $ 12,041,281
Trading Symbol IBIO    
Entity Common Stock, Shares Outstanding   18,336,792