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Note 7 -Inventories
9 Months Ended
Sep. 30, 2013
Balance Sheet Related Disclosures [Abstract]  
Schedule of Utility Inventory [Table Text Block]
7.
Inventories

Inventories consist of the following:

   
September 30,
2013
   
December 31,
2012
 
Raw materials
  $ 5,991,492     $ 6,109,807  
Work-in-process
    2,453,647       777,056  
Finished goods
    3,137,353       1,396,609  
Total
  $ 11,582,492     $ 8,283,472  

Inventories are stated at the lower of cost or market, with cost being determined using the first-in, first-out method. Work-in-process and finished goods inventories include materials, labor, and manufacturing overhead.