v2.4.0.6
Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2012
Summary of Significant Accounting Policies [Abstract]  
Potentially dilutive securities excluded from computations of diluted weighted-average shares outstanding
The following potentially dilutive securities have been excluded from the computations of diluted weighted-average shares outstanding as of September 30, 2012 and 2011, because they would be anti-dilutive (in thousands):

 
 
September 30,
 
 
 
2012
 
 
2011
 
 Shares underlying warrants to purchase outstanding common stock
 
 
330
 
 
 
158
 
 Shares underlying options to purchase outstanding common stock
 
 
1,690
 
 
 
377
 
 Shares underlying restricted stock units
 
 
496
 
 
 
487