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Note 5 - Inventories (Tables)
12 Months Ended
Sep. 30, 2014
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
   

September 30,

 
   

2014

   

2013

 

Raw materials

  $ 3,462,869     $ 3,941,203  

Finished goods

    634,246       605,240  

Work in process

    153,107       358,826  

Inventories, gross

    4,250,222       4,905,269  

Reserve for obsolescence

    (354,486 )     (317,519 )

Inventories, net

  $ 3,895,736     $ 4,587,750