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Property, Plant and Equipment, Net (Tables)
9 Months Ended
Sep. 30, 2019
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment
   Estimated Useful Lives
(in years)
  As of
September 30, 2019
   As of
December 31, 2018
 
Buildings and improvements  10-39  $17,078,829   $17,018,316 
Laboratory and manufacturing equipment  3-10   15,279,172    15,092,252 
Office furniture and equipment  3-10   731,397    731,510 
Construction in progress  n/a   477,400    91,067 
Land  n/a   516,867    516,867 
Property, plant and equipment, gross      34,083,665    33,450,012 
Accumulated depreciation      (9,104,818)   (7,422,463)
Property, plant and equipment, net     $24,978,847   $26,027,549