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Inventories - Inventories, Net of Reserves (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Current:    
Raw materials $ 3,388 $ 4,499
Finished goods 4,159 4,462
Total current inventory 7,547 8,961
Long-term:    
Raw materials 1,551 1,068
Finished goods 1,810 1,639
Total long-term inventory $ 3,361 $ 2,707