Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

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Commitments and Contingencies (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jan. 14, 2014
Dec. 31, 2015
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Dec. 31, 2018
Jun. 30, 2015
Apr. 30, 2013
Commitments and Contingencies [Line Items]                      
Research and Development Expense, Total     $ 1,453,000 $ 966,000   $ 3,850,000 $ 2,944,000        
Royalty Guarantees, Commitments, Amount     200,000     $ 200,000   $ 200,000      
Long Term Purchase Commitment Expire Date           Dec. 31, 2015          
Operating Leases, Rent Expense           $ 2,100,000          
Commitments [Member]                      
Commitments and Contingencies [Line Items]                      
Payment Of License Fee               150,000 $ 100,000    
Commitments [Member]                      
Commitments and Contingencies [Line Items]                      
Research Services Agreements Value Fulfilling Commitment   $ 3,000,000                  
Royalty Guarantees, Commitments, Amount   $ 3,000,000                  
License Cost $ 30,627                    
Initial license fee 20,000                    
Settlement Agreement [Member]                      
Commitments and Contingencies [Line Items]                      
Prepaid Expense                     $ 1,000,000
Amended Agreement [Member]                      
Commitments and Contingencies [Line Items]                      
Research and Development Expense, Total                   $ 2,100,000  
Second Eastern Affilate [Member]                      
Commitments and Contingencies [Line Items]                      
Research and Development Expense, Total       163,000     $ 505,000        
Minimum [Member] | Commitments [Member]                      
Commitments and Contingencies [Line Items]                      
License Cost 25,000                    
Maximum [Member] | Commitments [Member]                      
Commitments and Contingencies [Line Items]                      
License Cost $ 150,000                    
Fraunhofer [Member]                      
Commitments and Contingencies [Line Items]                      
Royalty Guarantees, Commitments, Amount     $ 4,000,000     4,000,000   $ 4,000,000      
Other Commitments, Description     the 2013 Settlement Agreement provided that, for a period of up to 15 years, the Company would pay Fraunhofer one percent (1%) of all receipts derived by the Company from sales of products produced utilizing the iBioLaunch™ or iBioModulator™ technology and ten percent (10%) of all receipts derived by the Company from licensing those technologies to third parties.                
iBio CDMO LLC [Member] | Second Eastern Affilate [Member]                      
Commitments and Contingencies [Line Items]                      
Operating Leases, Rent Expense     $ 32,000 $ 12,000 $ 39,000 $ 98,000