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Property and Equipment (Tables)
12 Months Ended
Sep. 30, 2012
Property and Equipment [Abstract]  
Property and equipment
                 
    September 30,  
    2012     2011  

Machinery and equipment

  $ 525,020     $ 521,719  

Office furniture and equipment

    716,625       775,662  

Leasehold improvements

    55,298       262,258  
   

 

 

   

 

 

 
      1,296,943       1,559,639  

Accumulated depreciation

    (1,084,080     (1,484,171
   

 

 

   

 

 

 
    $ 212,863     $ 75,468  
   

 

 

   

 

 

 
   
    Year ended September 30,  
    2012     2011  

Depreciation expense

  $ 64,409     $ 106,773