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Property and equipment:
12 Months Ended
Sep. 30, 2011
Property and equipment:  
Property and equipment:

6. Property and equipment:

        Property and equipment, net consists of the following balances:

 
  September 30,
2011
  September 30,
2010
 

Computer equipment

  $ 2,055,128   $ 1,968,365  

Corporate airplane

    3,082,186     3,082,186  

Furniture and office equipment

    1,074,279     1,077,698  

Manufacturing facility

    5,605,616     5,576,466  

Equipment

    4,205,243     4,070,171  

Land

    1,021,245     1,021,245  
           

 

    17,043,697     16,796,131  
 

Less: Accumulated depreciation and amortization

    (9,567,335 )   (9,034,593 )
           

 

  $ 7,476,362   $ 7,761,538  
           

        Depreciation related to property and equipment was approximately $0.5 million, $0.8 million and $0.9 million for fiscal 2011, 2010 and 2009, respectively.