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 6 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Jun. 30, 2018
Summary Of Significant Accounting Policies [Line Items]          
Revenues From Grants $ 37,000 $ 0 $ 37,000 $ 44,000  
Work in process 0   0   $ 0
Contract with Customer, Asset, Net, Current $ 57 $ 0 $ 57 $ 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