Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details Textual)

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Basis of Presentation (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Apr. 13, 2016
Nov. 30, 2017
Jul. 24, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2017
Jun. 30, 2016
Basis of Presentation [Line Items]                  
Accumulated deficit       $ (79,848,000)   $ (79,848,000)   $ (72,123,000)  
Net Cash Used in Operating Activities           (6,605,000) $ (5,837,000)    
Cash       7,310,000 $ 16,329,000 7,310,000 16,329,000 $ 8,088,000 $ 23,014,000
Proceeds from Issuance of Common Stock           5,500,000 0    
Stock Issued During Period, Shares, New Issues 6,500,000 22,500,000              
Stock Issued During Period, Value, New Issues $ 4,043,000 $ 4,500,000 $ 1,000,000     5,500,000      
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total       $ (3,900,000) $ (3,792,000) $ (7,727,000) $ (7,404,000)    
Common Stock, Shares, Issued     1,200,000 115,318,510   115,318,510   89,118,510  
iBio CMO [Member]                  
Basis of Presentation [Line Items]                  
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total           $ 7,700,000      
Lincoln Park Capital Fund, LLC [Member]                  
Basis of Presentation [Line Items]                  
Aggregate Common Stock Purchased     $ 16,000,000            
Proceeds from Issuance of Common Stock   $ 4,200,000              
Stock Issued During Period, Shares, New Issues   22,500,000 2,500,000            
Stock Issued During Period, Value, New Issues     $ 1,000,000