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Inventories (Narrative) (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Nov. 30, 2018
Inventory [Line Items]      
Reserve for potential obsolescence of products $ 500,000 $ 100,000  
Raw materials and work in process 19,176,660 18,378,450  
Finished goods, net of reserves 5,294,176 8,511,887  
Vibativ      
Inventory [Line Items]      
Raw materials and work in process 14,900,000 14,900,000  
Finished goods, net of reserves 100,000 $ 800,000  
Non-current inventory $ 300,000   $ 21,550,000