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Inventory (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Inventory [Line Items]    
Raw Materials $ 4,074 $ 3,434
Work in Process 336 201
Finished Goods 1,803 1,964
Total 6,213 5,599
Inventory, noncurrent 1,193 1,523
Inventory, net 5,020 $ 4,076
Triferic Inventory    
Inventory [Line Items]    
Raw Materials 900  
Inventory, noncurrent 1,200  
Inventory, net $ 1,200  
Useful life 25 years  
Triferic API    
Inventory [Line Items]    
Inventory, net $ 300