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Intangible Assets
 6 Months Ended
Mar. 31, 2012
Intangible Assets [Abstract]  
Intangible Assets

7. INTANGIBLE ASSETS

Intangible assets consisted of the following:

 

     March 31,
2012		     September 30,
2011		  

Cost

    $ 441,347      $ 458,912   

Accumulated amortization

      (240,755 )      (232,943 ) 
  

 

 

    

 

 

  
   $ 200,592      $ 225,969   
  

 

 

    

 

 

  
     Six months ended  
     March 31,
2012		     March 31,
2011		  

Amortization expense

    $ 15,012      $ 16,018   

Loss on impairment of patents

      11,197        20,433   
  

 

 

    

 

 

  
   $ 26,209      $ 36,451   
  

 

 

    

 

 

  

Each quarter, the Company reviews the ongoing value of its capitalized patent costs. In the first six months of fiscal 2012 and 2011, some of these assets were identified as being associated with patents that are no longer consistent with its business strategy. As a result of this review, the Company recorded a loss as shown above from the impairment of patents that were previously capitalized.