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Property and Equipment, net - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Aug. 03, 2020
Jun. 30, 2021
Jun. 30, 2020
Property, Plant and Equipment [Line Items]      
Depreciation expense   $ 55 $ 189
Austin, Texas      
Property, Plant and Equipment [Line Items]      
Write off of net leasehold improvement assets $ 229