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Note 5 - Inventories (Tables)
9 Months Ended
Sep. 30, 2012
Schedule of Inventory, Current [Table Text Block]
   
September 30, 2012
   
December 31, 2011
 
             
Raw materials
  $ 1,903,211     $ 1,986,880  
Work-in-process
    302,220       507,943  
Finished goods
    1,012,250       37,250  
Totals
    3,217,681       2,532,073  
Less: Reserve for obsolescence
    (300,000 )     (300,000 )
    $ 2,917,681     $ 2,232,073