Fair Value Measurements (Tables)
 6 Months Ended
Jun. 30, 2013
Basis of Fair Value Measurements

Basis of Fair Value Measurements

 

Balance at June 30, 2013 (in thousands, except per share data)

    Total      Quoted Prices
in Active
Markets for
Identical
Items
(Level 1)		      Significant
Other
Observable
Inputs
(Level 2)		      Significant
Unobservable
Inputs
(Level 3)		  

Common stock warrant liability

    $ 3,702       $ —         $ —         $ 3,702   
  

 

 

     

 

 

     

 

 

     

 

 

  
Reconciliation of Liabilities Measured at Fair Value on Recurring Basis

The following tables show reconciliations of the beginning and ending balances for liabilities measured at fair value on a recurring basis using significant unobservable inputs (i.e. Level 3) for the six months ended June 30, 2013:

 

Common Stock Warrant Liability

    Fair Value
Measurements
Using Significant
Unobservable
Inputs		  

Beginning of period

    $ —     

Issuance of common stock warrants

      4,392   

Change in the fair value of common stock warrant liability

      (690 ) 
  

 

 

  

Fair value of common stock warrant liability at June 30, 2013

      3,702