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3. INVENTORIES
9 Months Ended
Sep. 30, 2017
Inventory Related Text [Abstract]  
Inventory Related Text
         
 3.   INVENTORIES      

Inventories, net of reserves, are comprised of the following:


   
September 30,
 
December 31,
 September 30, 
   
2017
 
2016
  2016
             
Raw materials  $15,287,467    $14,260,416    $16,768,169 
Work-in-process   1,286,966     751,519     1,199,539 
Finished goods   60,310,720     54,156,507     61,954,597 
  Total   $76,885,153    $69,168,442    $79,922,305