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NET LOSS PER SHARE
 3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
NET LOSS PER SHARE

(4) NET LOSS PER SHARE

Basic and diluted net loss per share is computed by dividing net loss by the weighted-average number of common shares outstanding for the applicable period. Diluted net loss per share excludes the effect of outstanding potentially dilutive securities because they are anti-dilutive. The following table shows the outstanding potentially dilutive options, warrants and convertible notes for the three months ended March 31, 2013 and 2012 (in thousands):

 

   Three Months Ended March 31,
   2013  2012
       
Options outstanding   89,225    52,363 
Warrants outstanding   81,044    84,127 
Common stock underlying convertible notes outstanding   120,320    39,921