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Inventory - Schedule of Inventory (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Inventory - Current Portion    
Raw Materials $ 2,335 $ 3,351
Work in Process 337 351
Finished Goods 2,814 2,112
Total Current Inventory 5,486 5,814
Inventory - Long Term 178 1,276
Total Inventory 5,664 $ 7,090
Triferic Inventory | SEC Schedule, 12-09, Reserve, Inventory    
Inventory - Current Portion    
Inventory reserve, period increase (decrease) $ 1,100