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Property and equipment:
12 Months Ended
Sep. 30, 2012
Property and equipment:  
Property and equipment:

6. Property and equipment:

        Property and equipment, net consists of the following balances:

 
  September 30,
2012
  September 30,
2011
 

Computer equipment

  $ 2,090,556   $ 2,055,128  

Corporate airplane

    3,082,186     3,082,186  

Furniture and office equipment

    1,076,849     1,074,279  

Manufacturing facility

    5,605,616     5,605,616  

Equipment

    4,378,714     4,205,243  

Land

    1,021,245     1,021,245  
           

 

    17,255,166     17,043,697  

Less: Accumulated depreciation and amortization

    (10,040,788 )   (9,567,335 )
           

 

  $ 7,214,378   $ 7,476,362  
           

        Depreciation related to property and equipment was approximately $0.5 million, $0.5 million and $0.8 million for fiscal 2012, 2011 and 2010, respectively.