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Note 2 - Inventories
6 Months Ended
Mar. 31, 2013
Inventory Disclosure [Text Block]
2.    Inventories

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

   
March 31,
2013
   
September 30,
2012
   
March 31,
2012
 
                   
Components
  $ 942,802     $ 1,061,957     $ 1,087,525  
Work-in-Process
    341,766       451,733       508,251  
Finished Product
    195,586       221,080       229,505  
    $ 1,480,154     $ 1,734,770     $ 1,825,281  

The above amounts are net of reserve for obsolete inventory in the amount of $916,903, $851,000 and $810,000 for the periods ended March 31, 2013, September 30, 2012 and March 31, 2012 respectively.