XML 32 R29.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2014
Fair Value Measurements [Abstract]  
Assets and Liabilities Measured at Fair Value
The following table provides a summary of the recognized assets and liabilities that we measure at fair value on a recurring basis:
 
  
Balance as of
  
Basis of Fair Value Measurements
 
  
December 31, 2014
  
Level 1
  
Level 2
  
Level 3
 
Assets:
        
Cash equivalents
 
$
8,144,000
  
$
8,144,000
  
$
—
  
$
—
 
                 
Liabilities:
                
Warrant liability
 
$
9,793,000
  
$
—
  
$
—
  
$
9,793,000
 
                 
  
Balance as of
  
Basis of Fair Value Measurements
 
  
December 31, 2013
  
Level 1
  
Level 2
  
Level 3
 
Assets:
                
Cash equivalents
 
$
4,644,000
  
$
4,644,000
  
$
—
  
$
—
 
Summary of change in Level 3 warrant liablility
The following table summarizes the change in our Level 3 warrant liability value:

Warrant liability
 
December 31, 2014
  
December 31, 2013
 
     
Beginning balance
 
$
—
  
$
418,000
 
Additions to warrant liability
  
10,162,000
   
—
 
Change in fair value
  
(369,000
)
  
(418,000
)
Ending balance
 
$
9,793,000
  
$
—
 
Level 3 Put Option Liability
The following table summarizes the change in our Level 3 Put option liability value:

Put option liability
 
Year ended
December 31, 2013
 
   
Beginning balance
 
$
(2,250,000
)
Decrease (increase)  in fair value recognized in operating expenses
  
2,250,000
 
Ending balance
 
$
—