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):
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|
Fair Value Measurements at December 31, 2014 Using |
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|
|
|
|
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Quoted Prices in Active Markets for Identical Assets |
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Significant Other Observable Inputs |
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Significant Unobservable Inputs |
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|
|
|
|
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(Level 1) |
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(Level 2) |
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(Level 3) |
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Total |
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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:
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|
December 31, 2014 |
|
|
December 31, 2013 |
|
|
|
Carrying Amount |
|
|
Fair Value |
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|
Carrying Amount |
|
|
Fair Value |
|
|
|
|
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|
|
|
|
|
|
|
|
Outstanding debt |
|
$ |
35,537 |
|
|
$ |
36,461 |
|
|
$ |
40,985 |
|
|
$ |
41,813 |
|
|