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Summary of Significant Accounting Policies - Components of Inventory (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Jun. 30, 2020
Inventory Disclosure [Abstract]    
Finished goods $ 11,619 $ 10,164
Raw materials 3,179 3,724
Total inventory $ 14,798 $ 13,888
Finished goods, percent of inventory (in percentage) 78.50% 73.20%
Raw materials, percent of inventory (in percentage) 21.50% 26.80%
Percent of total inventory (in percentage) 100.00% 100.00%