Quarterly report pursuant to Section 13 or 15(d)

Allocation (Details Textual)

v3.8.0.1
Allocation (Details Textual) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Jun. 30, 2017
Mar. 31, 2018
Mar. 31, 2017
Allocated Share-based Compensation Expense   $ 0.0 $ 0.1
Share Based Compensation Allocation Percentage 100.00%    
Research and Development Expense [Member]      
Share Based Compensation Allocation Percentage   50.00%  
General and Administrative Expense [Member]      
Share Based Compensation Allocation Percentage   50.00%