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Net Loss Per Common Share (Details) - shares
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Antidilutive securities 21,954,971 1,922,338
Liability Warrants    
Antidilutive securities 240,755 240,755
Equity-Based Warrants    
Antidilutive securities 16,218,908 1,641,906
Employee Stock Option    
Antidilutive securities 1,787 1,556
Employee Unvested Restricted Stock    
Antidilutive securities 2,342,604 37,890
Convertible Preferred Stock    
Antidilutive securities 3,151,148 0