Annual report pursuant to Section 13 and 15(d)

Corporate Information (Details)

v3.8.0.1
Corporate Information (Details) - USD ($)
$ in Millions
1 Months Ended
Mar. 14, 2018
Feb. 28, 2018
Dec. 31, 2017
Subsequent Event [Line Items]      
Cash, cash equivalents and investments     $ 82.6
Subsequent Event      
Subsequent Event [Line Items]      
Net proceeds from stock offering   $ 47.3  
Proceeds from License Fees Received $ 30.0