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Strategic Research Collaboration (Details) - USD ($)
$ in Millions
1 Months Ended
May 16, 2018
Apr. 30, 2019
Jan. 31, 2019
Collaboration Agreement [Abstract]      
Funding in strategic research collaboration $ 3.5    
Percentage of funding due upon execution of the agreement 40.00%    
Remaining funding due upon the execution of the agreement $ 2.1    
Funding in Strategic Research Collaboration $ 1.4   $ 1.4
Milestone payment made during period   $ (1.4)