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Nature of Business, Financial Condition, Basis of Presentation - General Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Jun. 30, 2021
Jun. 30, 2020
Cash, cash equivalents and restricted cash            
Cash, cash equivalents and restricted cash $ 27,613 $ 46,790 $ 27,613 $ 46,790 $ 49,901 $ 48,333
Net loss            
Net loss (53,073) $ (25,460) (92,472) (39,291)    
Accumulated deficit            
Accumulated deficit $ (270,771)   (270,771)   $ (178,299)  
Operating activities            
Cash used in operations     $ (21,728) $ (19,687)