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Property and Equipment (Tables)
6 Months Ended
Mar. 31, 2013
Property and Equipment [Abstract]  
Property and equipment
                 
    March 31,
2013
    September 30,
2012
 

Machinery and equipment

  $ 601,187     $ 525,020  

Office furniture and equipment

    720,465       716,625  

Leasehold improvements

    55,298       55,298  
   

 

 

   

 

 

 
      1,376,950       1,296,943  

Accumulated depreciation

    (1,137,060     (1,084,080
   

 

 

   

 

 

 
    $ 239,890     $ 212,863  
   

 

 

   

 

 

 
   
   

Six months ended

March 31,

 
    2013     2012  

Depreciation expense

  $ 55,898     $ 29,999