Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.8.0.1
Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2017
Summary Of Significant Accounting Policies [Line Items]          
Revenue from Grants $ 0 $ 4 $ 44 $ 40  
Work in process $ 0   $ 0   $ 26
Minimum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Property, Plant and Equipment, Estimated Useful Lives     0    
Maximum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Property, Plant and Equipment, Estimated Useful Lives     0    
Patents [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Finite-Lived Intangible Assets, Remaining Amortization Period     10 years    
Intellectual Property [Member] | Minimum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Finite-Lived Intangible Assets, Remaining Amortization Period     16 years    
Intellectual Property [Member] | Maximum [Member]          
Summary Of Significant Accounting Policies [Line Items]          
Finite-Lived Intangible Assets, Remaining Amortization Period     23 years