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Note 2 - Inventories
3 Months Ended
Dec. 31, 2011
Inventory Disclosure [Text Block]
2. Inventories

Inventories are valued at the lower of cost or market and consist of the following:

   
December 31,
2011
   
September 30,
2011
   
December 31,
2010
 
                   
Components
  $ 1,051,776     $ 1,145,278     $ 1,257,728  
Work-in-Process
    486,813       515,885       427,228  
Finished Product
    294,827       302,780       365,895  
    $ 1,833,416     $ 1,963,943     $ 2,050,851  

The above amounts are net of reserve for obsolete inventory in the amount of $762,000, $714,000 and $428,091 for the periods ended December 31, 2011, September 30, 2011 and December 31, 2010 respectively.