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Note 2 - Inventories
3 Months Ended
Dec. 31, 2012
Inventory Disclosure [Text Block]
2. Inventories

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

   
December 31,
2012
   
September 30,
2012
   
December 31,
2011
 
                   
Components
  $ 1,036,824     $ 1,061,957     $ 1,051,776  
Work-in-Process
    596,926       451,733       486,813  
Finished Product
    236,369       221,080       294,827  
    $ 1,870,119     $ 1,734,770     $ 1,833,416  

The above amounts are net of reserve for obsolete inventory in the amount of $883,903, $851,000 and $762,000 for the periods ended December 31, 2012, September 30, 2012 and December 31, 2011 respectively.