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Warrants - Summary of Equity-based Warrants (Details) - Equity Warrants - $ / shares
 12 Months Ended
Mar. 19, 2021
Mar. 11, 2021
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Warrants          
Outstanding, number of warrants (in shares)     2,288,528 1,621,938  
Warrants issued, number of warrants (in shares)     403,760 4,462,740  
Warrants expired, number of warrants (in shares) 1,133,920 300,000 (1,437,336)    
Warrants exercised (in shares)       (3,796,150)  
Outstanding, number of warrants (in shares)     1,254,952 2,288,528 1,621,938
Outstanding, weighted average remaining contractual life (Year)     2 years 9 months 29 days 2 years 4 years 4 months 9 days
Weighted Average          
Warrants          
Outstanding, weighted average exercise price (in dollars per share)     $ 30.26 $ 31.50  
Outstanding, number of warrants (in shares)     0    
Weighted average exercise price (in dollars per share)       12  
Outstanding, weighted average exercise price (in dollars per share)     $ 35.85 $ 30.26 $ 31.50
Expired $ 14.70 $ 12.5