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PROPERTY, EQUIPMENT and LEASEHOLD IMPROVEMENTS
9 Months Ended
Sep. 30, 2011
PROPERTY, EQUIPMENT and LEASEHOLD IMPROVEMENTS [Abstract] 
PROPERTY, EQUIPMENT and LEASEHOLD IMPROVEMENTS
NOTE 7.
PROPERTY, EQUIPMENT and LEASEHOLD IMPROVEMENTS

Property, equipment and leasehold improvements, net, consisted of the following at September 30, 2011 and December 31, 2010:

Property, equipment and leasehold improvements
 
September 30, 2011
  
December 31, 2010
 
  Laboratory equipment
 $424,888  $424,888 
  Manufacturing equipment
  1,483,223   1,483,223 
  Computers, office equipment, and furniture
  140,360   140,360 
  Computer software
  4,108   4,108 
  Leasehold improvements
  95,841   95,841 
    2,148,420   2,148,420 
  Less: accumulated depreciation and amortization
  ( 1,000,602)  (772,936)
  Property, equipment and leasehold improvements, net
 $1,147,818  $1,375,484 

Depreciation expense on property, equipment and leasehold improvements was $75,359 and $79,073 for the three months ended September 30, 2011 and 2010, respectively, and was $227,665 and $179,053 for the nine months ended September 30, 2011 and 2010, respectively.