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Property and Equipment
12 Months Ended
Dec. 31, 2011
Property and Equipment
5. Property and Equipment
 
Property and equipment is stated at cost and consists of the following:
 
   
December 31,
 
   
2011
   
2010
 
Machinery and equipment
  $ 10,429,816     $ 9,972,821  
Furniture and fixtures
    840,350       640,931  
Leasehold improvements
    12,421,398       12,074,288  
Construction in progress
    27,159,066       27,008,949  
  Subtotal
    50,850,630       49,696,989  
Less accumulated depreciation
    (14,380,752 )     (12,715,595 )
  Total
  $ 36,469,878     $ 36,981,394  
 
Depreciation expense was $1,816,188, $1,308,713 and $1,234,644 for the years ended December 31, 2011, 2010 and 2009, respectively.