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Property and Equipment - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Aug. 03, 2020
Sep. 30, 2020
Sep. 30, 2019
Property, Plant and Equipment [Line Items]      
Depreciation expense   $ 22 $ 59
Austin, Texas      
Property, Plant and Equipment [Line Items]      
Write off of net leasehold improvement assets $ 229