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Inventories (Narrative) (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Inventory [Line Items]    
Obsolescence and discontinuance losses $ 300,000 $ 200,000
Non-current inventories 9,476,737 11,656,742
Inventory, Finished Goods, Net of Reserves 5,812,293 5,943,732
Ifetroban Clinical    
Inventory [Line Items]    
Non-current inventories 400,000 400,000
Vaprisol    
Inventory [Line Items]    
Non-current inventories   15,600,000
Finished goods 200,000 2,100,000
Inventory, Finished Goods, Net of Reserves $ 9,500,000 $ 11,700,000