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Inventories - Components of inventory (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Inventory Disclosure [Abstract]    
Raw materials $ 7,000 $ 5,610
Finished goods 21,490 13,985
Inventories 28,490 19,595
Less reserve for excess and obsolete inventory (9,301) (10,141)
Inventories, net $ 19,189 $ 9,454