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

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


   
June 30,
 
December 31,
 June 30, 
   
2017
 
2016
  2016
             
Raw materials   $14,083,099    $14,260,416    $19,499,464 
Work-in-process    983,974     751,519     1,586,091 
Finished goods    61,247,648     54,156,507     66,470,401 
  Total   $76,314,721    $69,168,442    $87,555,956