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Property, Plant and Equipment (Tables)
 3 Months Ended
Mar. 31, 2016
Property, Plant and Equipment [Abstract]  
Schedule of property, plant and equipment

 

As of

March 31, 2016

  

As of

December 31, 2015

  

Increase

(Decrease)

 
          
Laboratory and manufacturing equipment $5,139,329  $3,766,556  $1,372,773 
Building and improvements  4,935,842   4,716,204   219,638 
Office furniture and equipment  569,129   568,188   941 
Construction in progress(1)  18,751   1,084,924   (1,066,173)
Land  348,827   333,486   15,341 
Property, plant and equipment, gross  11,011,878   10,469,358   542,520 
Accumulated depreciation  (4,911,076)  (4,750,544)  (160,532)
Property, plant and equipment, net $6,100,802  $5,718,814  $381,988 

 

(1) As of March 31, 2016, construction in progress included $10,861 in payments related to the construction of our commercial-scale Nisin plant. As of December 31, 2015, construction in progress consisted principally of partial payments towards new manufacturing equipment.