Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.10.0.1
Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Jun. 30, 2018
Summary Of Significant Accounting Policies [Line Items]      
Revenues From Grants $ 0 $ 44,000  
Work in process $ 0   $ 0
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