Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details)

v3.19.3.a.u2
Related Party Transactions (Details)
3 Months Ended 6 Months Ended
May 01, 2019
USD ($)
Jun. 26, 2018
shares
Nov. 30, 2017
shares
Feb. 23, 2017
USD ($)
shares
Jan. 13, 2016
shares
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2019
USD ($)
item
shares
Dec. 31, 2018
USD ($)
Dec. 01, 2019
Jun. 30, 2019
USD ($)
Jan. 26, 2018
Related Party Transaction [Line Items]                        
General and administrative expenses           $ 2,581,000 $ 3,393,000 $ 5,567,000 $ 6,264,000      
Stock Issued During Period, Shares, New Issues | shares   4,350,000 2,250,000                  
Shares exchanged for ownership interest | shares       29,990,000                
Noncontrolling Interest, Amount Represented by Preferred Stock       $ 13,000,000                
Consulting Fees Per Month $ 40,000                      
Professional Fees           138,000 288,000 $ 138,000 288,000      
iBio CDMO LLC [Member]                        
Related Party Transaction [Line Items]                        
Noncontrolling Interest, Ownership Percentage by Parent       99.99%                
Preferred Tracking Stock [Member]                        
Related Party Transaction [Line Items]                        
Shares exchanged for ownership interest | shares       29,990,000                
Noncontrolling Interest, Amount Represented by Preferred Stock       $ 13,000,000                
Minimum [Member]                        
Related Party Transaction [Line Items]                        
Consulting Rate Per Hour 85.00                      
Percentage of bonus                   3.00%    
Maximum [Member]                        
Related Party Transaction [Line Items]                        
Consulting Rate Per Hour $ 1,000                      
Percentage of bonus                   4.50%    
Standstill Agreements [Member]                        
Related Party Transaction [Line Items]                        
Agreement Extension Period               2 years        
Eastern Capital Limited And Its Affiliates [Member]                        
Related Party Transaction [Line Items]                        
Number Of Agreements | item               2        
Second Eastern Affiliate [Member]                        
Related Party Transaction [Line Items]                        
Interest expense           615,000 476,000 $ 1,235,000 952,000      
Other General And Administrative Expense           $ 165,000 304,000 $ 336,000 527,000      
Eastern Affiliate [Member]                        
Related Party Transaction [Line Items]                        
Stock Issued During Period, Shares, New Issues | shares         650,000              
Equity Method Investment, Ownership Percentage                       40.00%
Eastern Affiliate [Member] | iBio CDMO LLC [Member]                        
Related Party Transaction [Line Items]                        
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners       0.01%   30.00%   30.00%        
Eastern Affiliate [Member] | Retained Interest [Member] | iBio CDMO LLC [Member]                        
Related Party Transaction [Line Items]                        
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners           70.00%   70.00%        
Eastern Capital Limited And Its Affiliates [Member] | iBio CDMO LLC [Member]                        
Related Party Transaction [Line Items]                        
Related Party Transaction, Due from (to) Related Party           $ 15,000,000   $ 15,000,000        
Second Eastern Affiliate [Member]                        
Related Party Transaction [Line Items]                        
Accrued expenses           702,000   702,000     $ 699,000  
General and administrative expenses           165,000 $ 304,000          
Interest expense               615,000 $ 476,000      
Advising, Limited Liability Corporation [Member]                        
Related Party Transaction [Line Items]                        
Related Party Transaction, Due from (to) Related Party           $ 0   $ 0     $ 60,000  
Stockholders [Member] | Standstill Agreements [Member]                        
Related Party Transaction [Line Items]                        
Stock Issued During Period, Shares, New Issues | shares               650,000        
Director [Member] | Standstill Agreements [Member]                        
Related Party Transaction [Line Items]                        
Equity Method Investment, Ownership Percentage           48.00%   48.00%