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Inventories (Narrative) (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Inventory [Line Items]    
Inventory reserves, obsolescence and discontinuance $ 100,000 $ 300,000
Non-current inventories 15,554,992 15,749,000
Finished goods 5,204,321 8,511,887
VIBATIV    
Inventory [Line Items]    
Non-current inventories 15,300,000  
Finished goods   $ 800,000
Ifetroban Clinical    
Inventory [Line Items]    
Non-current inventories $ 300,000