Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v2.4.0.6
Stockholders' Equity (Tables)
14 Months Ended
Mar. 31, 2013
Financial Liabilities Subject to Fair Value Measurements

The following table sets forth the Company’s financial liabilities, related to warrants issued in the August 2008, October 2009 and March 2011 offerings, subject to fair value measurements as of March 31, 2013 and December 31,2012:

 

(in thousands)    Fair Value as of
March 31,
2013
     Basis of Fair Value Measurements  
      Level 1      Level 2      Level 3  

August 2008 warrants

   $ 8,415       $ —        $ —        $ 8,415   

October 2009 warrants

     13,379         —           —           13,379   

March 2011 warrants

     13,852         —           —           13,852   
  

 

 

    

 

 

    

 

 

    

 

 

 

Total common stock warrants

   $ 35,646       $ —        $ —        $ 35,646   
  

 

 

    

 

 

    

 

 

    

 

 

 

 

(in thousands)    Fair Value as of
December 31,
2012
     Basis of Fair Value Measurements  
      Level 1      Level 2      Level 3  

August 2008 warrants

   $ 8,014       $ —        $ —        $ 8,014   

October 2009 warrants

     11,963         —          —          11,963   

March 2011 warrants

     12,581         —          —          12,581   
  

 

 

    

 

 

    

 

 

    

 

 

 

Total common stock warrants

   $ 32,558       $ —        $ —        $ 32,558   
  

 

 

    

 

 

    

 

 

    

 

 

 
Reconciliation of Warrant Liability Measured at Fair Value

The following table is a reconciliation of the warrant liability measured at fair value using level 3 inputs (in thousands):

 

     Warrant Liability  

Balance at December 31, 2012

   $ 32,558   

Change in fair value of common stock warrants during three months ended March 31, 2013

     3,116   

Exercise of warrants during three months ended March 31, 2013

     (28
  

 

 

 

Balance at March 31, 2013

   $ 35,646   
  

 

 

 
August 2008 offering [Member]
 
Outstanding Warrants Valuation Assumption
     March 31,
2013
    December 31,
2012
 

Risk-free interest rate

     0.11     0.16

Expected life (in years)

     0.41        0.66   

Dividend yield

     —          —     

Volatility

     66     118

Stock price

   $ 4.61      $ 4.21   
October 2009 offering [Member]
 
Outstanding Warrants Valuation Assumption
     March 31,
2013
    December 31,
2012
 

Risk-free interest rate

     0.25     0.25

Expected life (in years)

     1.52        1.76   

Dividend yield

     —          —     

Volatility

     103     98

Stock price

   $ 4.61      $ 4.21   
March 2011 offering [Member]
 
Outstanding Warrants Valuation Assumption
     March 31,
2013
    December 31,
2012
 

Risk-free interest rate

     0.36     0.72

Expected life (in years)

     2.96        3.21   

Dividend yield

     —          —     

Volatility

     95     94

Stock price

   $ 4.61      $ 4.21