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Leasehold Improvements and Equipment
6 Months Ended
Jun. 30, 2012
Interim Financial Statements  
Note 3. Leasehold Improvements and Equipment [Text Block]

Leasehold improvements and equipment consisted of the following:

   June 30, 2012 December 31, 2011
     
Laboratory equipment  $      2,415,463    $      2,378,122  
Leasehold improvements             403,971               403,971  
Computer equipment             356,962               302,518  
Furniture and fixtures               18,313                 18,313  
Office equipment                 7,877                   7,877  
Construction in progress             107,557                149,086  
           3,310,143            3,259,887  
Less accumulated depreciation          2,243,482            2,087,599  
   $      1,066,661   $      1,172,288