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Inventory (Tables)
 3 Months Ended
Mar. 31, 2018
Inventory [Abstract]  
Schedule of inventory

 

  As of
March 31, 2018		  As of
December 31, 2017		 
Raw materials $438,864  $483,329 
Work-in-process  1,425,611   1,349,649 
Finished goods  65,452   216,754 
Total $1,929,927  $2,049,732