Annual report pursuant to Section 13 and 15(d)

Basis of Presentation (Details Textual)

v3.10.0.1
Basis of Presentation (Details Textual) - USD ($)
 1 Months Ended 12 Months Ended
Jul. 12, 2018
Jun. 30, 2018
Jun. 26, 2018
Jun. 26, 2018
Nov. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Aug. 31, 2018
Jun. 20, 2018
Feb. 23, 2017
Jun. 30, 2016
Basis of Presentation [Line Items]                      
Accumulated deficit   $ (88,228,000)       $ (88,228,000) $ (72,123,000)        
Net Cash Used in Operating Activities           (13,480,000) (13,163,000)        
Cash   $ 15,934,000       15,934,000 8,088,000       $ 23,014,000
Stock Issued During Period, Shares, New Issues 1,500,000   4,350,000   2,250,000            
Stock Issued During Period, Value, New Issues     $ 16,000,000 $ 16,000,000 $ 4,500,000            
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest           $ (16,108,000) (16,139,000)        
Shares Issued, Price Per Share $ 0.90   $ 0.90 $ 0.90 $ 2.00            
Preferred Stock, Par or Stated Value Per Share     $ 1,000 $ 1,000         $ 0.001    
Convertible Preferred Stock, Shares Issued upon Conversion   100,000 7,000,000 7,000,000   100,000          
Convertible Preferred Stock Conversion Price     $ 0.90 $ 0.90              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized   2,666,666 2,666,666                
Over-Allotment Option [Member]                      
Basis of Presentation [Line Items]                      
Stock Issued During Period, Shares, New Issues         11,000            
Stock Issued During Period, Value, New Issues     $ 17,350,000                
Underwritten Public Offering [Member]                      
Basis of Presentation [Line Items]                      
Stock Issued During Period, Value, New Issues     $ 16,000,000                
Common Stock [Member]                      
Basis of Presentation [Line Items]                      
Stock Issued During Period, Shares, New Issues       4,350,000              
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest           $ 0 $ 0        
Shares Issued, Price Per Share     $ 0.90 $ 0.90              
Convertible Preferred Stock, Shares Issued upon Conversion   100,000       100,000          
Series A Preferred Stock [Member]                      
Basis of Presentation [Line Items]                      
Stock Issued During Period, Shares, New Issues     6,300 6,300              
Preferred Stock, Par or Stated Value Per Share     $ 1,000 $ 1,000         $ 0.001    
Series A Preferred Stock [Member] | Common Stock [Member]                      
Basis of Presentation [Line Items]                      
Convertible Preferred Stock Conversion Price     $ 0.90 $ 0.90              
Series B Preferred Stock [Member]                      
Basis of Presentation [Line Items]                      
Stock Issued During Period, Shares, New Issues     5,785 5,785              
Preferred Stock, Par or Stated Value Per Share     $ 1,000 $ 1,000              
Series B Preferred Stock [Member] | Common Stock [Member]                      
Basis of Presentation [Line Items]                      
Convertible Preferred Stock, Shares Issued upon Conversion     6,427,778 6,427,778              
Convertible Preferred Stock Conversion Price     $ 0.90 $ 0.90              
Subsequent Event [Member]                      
Basis of Presentation [Line Items]                      
Stock Issued During Period, Value, New Issues $ 1,350,000                    
Convertible Preferred Stock, Shares Issued upon Conversion               746,665      
Subsequent Event [Member] | Over-Allotment Option [Member]                      
Basis of Presentation [Line Items]                      
Proceeds from Issuance of Common Stock $ 1,350,000                    
Stock Issued During Period, Shares, New Issues 1,500,000                    
Shares Issued, Price Per Share $ 0.90                    
Subsequent Event [Member] | Common Stock [Member]                      
Basis of Presentation [Line Items]                      
Convertible Preferred Stock, Shares Issued upon Conversion               746,665      
iBio CMO [Member]                      
Basis of Presentation [Line Items]                      
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest           $ 16,100,000          
Preferred Stock, Par or Stated Value Per Share                   $ 0.001