Annual report pursuant to Section 13 and 15(d)

Available-for-Sale and Fair Value Measurements (Tables)

v2.4.1.9
Available-for-Sale and Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2014
Available-for-Sale and Fair Value Measurements [Abstract]  
Schedule of Available-for-sale securities
The classification of the Company’s available-for-sale securities consisted of the following (in thousands):

   
December 31,
2014
   
December 31, 2013
 
Money Market funds
 
$
67,569
   
$
82,759
 
U.S. treasury securities
   
-
     
19,989
 
   
$
67,569
   
$
102,748
 
Financial assets and liabilities carried at fair value
The following tables set forth the Company’s fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2014 and 2013 as follows (in thousands):


   
Fair Value Measurements at December 31, 2014 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)
 
$
67,569
   
$
-
   
$
-
   
$
67,569
 
Foreign exchange options
   
-
     
6
     
-
     
6
 
Total
 
$
67,569
   
$
6
   
$
-
   
$
67,575
 
                                 
Liabilities:
                               
Contingent warrant liabilities
 
$
-
   
$
-
   
$
31,828
   
$
31,828
 

   
Fair Value Measurements at December 31, 2013 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)
 
$
82,759
   
$
-
   
$
-
   
$
82,759
 
U.S. treasury securities
   
19,989
     
-
     
-
     
19,989
 
Foreign exchange options
   
-
     
361
     
-
     
361
 
Total
 
$
102,748
   
$
361
   
$
-
   
$
103,109
 
                                 
Liabilities:
                               
Contingent warrant liabilities
 
$
-
   
$
-
   
$
69,869
   
$
69,869
 

(1)  Included in cash and cash equivalents
Warrant liabilities fair value assumptions
The fair value of the contingent warrant liabilities was estimated using the following range of assumptions at December 31, 2014 and 2013:

   
December 31,
2014
   
December 31, 2013
 
Expected volatility
   
69.6% - 72.9
%
   
66.1% - 86.6
%
Risk-free interest rate
   
0.03% - 0.67
%
   
0.10% - 0.80
%
Expected term
 
0.09 - 2.19 years
   
0.90 - 3.20 years
 
Summary of changes in fair value of Level 3 financial liabilities
The following table provides a summary of changes in the fair value of the Company’s Level 3 financial liabilities for the years ended December 31, 2014, 2013, and 2012 (in thousands):

   
Warrant Liabilities
 
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
   
(940
)
Net increase in fair value of contingent warrant liabilities upon revaluation
   
9,172
 
Balance at December 31, 2012
   
15,001
 
Reclassification of contingent warrant liability to equity upon exercise of warrants
   
(6,171
)
Net increase in fair value of contingent warrant liabilities upon revaluation
   
61,039
 
Balance at December 31, 2013
   
69,869
 
Initial fair value of warrants issued in December 2014 warrant
   
10,258
 
Reclassification of contingent warrant liability to equity upon exercise of warrants
   
(2,526
)
Net decrease in fair value of contingent warrant liabilities upon revaluation
   
(45,773
)
Balance at December 31, 2014
 
$
31,828
 
Outstanding debt carrying amount and estimated fair value
The fair value of the Company’s outstanding debt is estimated based on market interest rates. The carrying amount and the estimated fair value of the Company’s outstanding debt at December 31, 2014 and 2013 are as follows:

   
December 31, 2014
   
December 31, 2013
 
   
Carrying Amount
   
Fair Value
   
Carrying Amount
   
Fair Value
 
                 
Outstanding debt
 
$
35,537
   
$
36,461
   
$
40,985
   
$
41,813