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Note 5 - Inventories (Tables)
6 Months Ended
Jun. 30, 2012
Schedule of Inventory, Current [Table Text Block]
   
June 30, 2012
   
December 31, 2011
 
             
Raw materials
  $ 1,877,191     $ 1,986,880  
Work-in-process
    357,821       507,943  
Finished goods
    1,012,250        37,250  
Totals
    3,247,262       2,532,073  
Less: Reserve for obsolescence
    (300,000 )     (300,000 )
    $ 2,947,262     $ 2,232,073