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Summary of Significant Accounting Policies - Summary of Warranty Provision (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Accounting Policies [Abstract]    
Beginning Balance $ 3  
Warranty claims provided for 22 $ 3
Settlements made (7)  
Ending Balance $ 18 $ 3