XML 15 R8.htm IDEA: XBRL DOCUMENT v2.3.0.15
Inventory
9 Months Ended
Sep. 30, 2011
Inventory [Abstract] 
Inventory
3. Inventory
Inventories are stated at the lower of cost or market. Cost is determined using the weighted average cost of raw materials, which approximates the first-in, first-out (FIFO) method, and includes allocations of manufacturing labor and overhead. Provisions are made to reduce potentially excess, obsolete or slow-moving inventories to their net realizable value. Inventories as of September 30, 2011 and December 31, 2010, consisted of the following:
                 
    September 30, 2011     December 31, 2010  
 
               
Raw materials and work-in-process
  $ 12,514,911     $ 11,817,579  
Finished goods
    3,873,847       6,348,490  
Reserve for excess and obsolete inventory
    (919,630 )     (350,664 )
 
           
 
               
 
  $ 15,469,128     $ 17,815,405