Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Tables)

v2.4.0.6
Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2012
Fair Value Measurements [Abstract]  
Financial assets and liabilities carried at fair value
Financial assets and liabilities carried at fair value as of September 30, 2012 and December 31, 2011 were classified as follows (in thousands):

   
Fair Value Measurements at September 30, 2012 Using
   
 
 
   
Quoted Prices in
Active Markets for
Identical Assets
   
Significant Other
Observable Inputs
   
Significant
Unobservable
Inputs
   
 
 
   
(Level 1)
   
(Level 2)
   
(Level 3)
   
Total
 
Assets:
 
 
   
 
   
 
   
 
 
Money market funds (1)
  $ 30,841     $ -     $ -     $ 30,841  
U.S. treasury securities
    16,999       -       -       16,999  
Foreign exchange options
    -       481       -       481  
Total
  $ 47,840     $ 481     $ -     $ 48,321  
                                 
Liabilities:
                               
Contingent warrant liabilities
  $ -     $ -     $ 32,179     $ 32,179  

   
Fair Value Measurements at December 31, 2011 Using
   
 
 
   
Quoted Prices in
Active Markets for
Identical Assets
   
Significant Other
Observable Inputs
   
Significant Unobservable Inputs
   
 
 
   
(Level 1)
   
(Level 2)
   
(Level 3)
   
Total
 
Assets:
 
 
   
 
   
 
   
 
 
Money market funds (1)
  $ 27,222     $ -     $ -     $ 27,222  
Foreign exchange options
    -       1,202       -       1,202  
Total
  $ 27,222     $ 1,202     $ -     $ 28,424  
                                 
Liabilities:
                               
Contingent warrant liabilities
  $ -     $ -     $ 379     $ 379  

(1)  Included in cash and cash equivalents
Contingent warrant liabilities fair value assumptions
The fair value of the contingent warrant liabilities was estimated using the following range of assumptions at September 30, 2012 and December 31, 2011:
 
 
   
September 30,
2012
   
December 31,
2011
 
Expected volatility
    40 %     102.1% - 103.2 %
Risk-free interest rate
    0.3% - 0.7 %     0.4 %
Expected term
 
2.2 - 4.4 years
   
2.9 - 3.1 years
 
Summary of changes in fair value of financial liabilities
The following table provides a summary of changes in the fair value of the Company's Level 3 financial liabilities for the nine months ended September 30, 2012 (in thousands):

Contingent warrant liabilities
 
September 30,
2012
 
Balance at December 31, 2011
  $ 379  
Initial fair value of warrants issued in March 2012
    6,390  
Reclassification of contingent warrant liability to equity upon exercise of warrants
    (336 )
Net increase in fair value of contingent warrant liabilities upon revaluation
    25,746  
Balance at September 30, 2012
  $ 32,179