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Inventory (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Inventory - Current Portion    
Raw Materials $ 2,805 $ 3,351
Work in Process 411 351
Finished Goods 2,598 2,112
Total Current Inventory 5,814 5,814
Inventory - Long Term 1,276 1,276
Total Inventory 7,090 7,090
Triferic Inventory    
Inventory - Current Portion    
Inventory - Long Term 1,300 1,300
Inventory, gross 5,800 5,800
Inventory, reserve $ 25 $ 25