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Property and Equipment, Net
12 Months Ended
Dec. 31, 2013
Property and Equipment, Net  
Property and Equipment, Net

7. Property and Equipment, Net

        Property and equipment consisted of the following:

 
  Year ended
December 31,
 
 
  2013   2012  

Equipment

  $ 4,868   $ 5,151  

Furniture and fixtures

    227     227  

Leasehold improvements

    2,652     2,641  

Software

    381     381  
           

Total property and equipment, at cost

    8,128     8,400  

Less: Accumulated depreciation

    (7,335 )   (7,042 )
           

Property and equipment, net

  $ 793   $ 1,358  
           
           

        Depreciation expense for the years ended December 31, 2013, 2012, and 2011 was $928, $1,298 and $1,507 respectively. The Company had no equipment under capital leases as of December 31, 2013 or 2012.