Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation (Tables)

v2.4.0.8
Stock Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2014
Stock Based Compensation [Abstract]  
Summarization of stock-based compensation
The following table summarizes stock-based compensation for the three and nine months ended September 30, 2014 and 2013:

   
Three months ended
September 30,
   
Nine months ended
September 30,
 
   
2014
   
2013
   
2014
   
2013
 
Research and development
  
$
18,000
    
$
9,000
    
$
113,000
    
$
28,000
  
Selling, general and administrative
    
154,000
      
17,000
      
1,046,000
      
326,000
  
Stock-based compensation expense included in operating expense
  
$
172,000
    
$
26,000
    
$
1,159,000
    
$
354,000
  
Valuation assumptions
Our weighted average Black-Scholes fair value assumptions used to value the grants in the first nine months of 2014 are as follows:
   
 
9/30/14
  
Expected life(b)
5.5 yrs
  
Risk free interest rate
    
1.65
%
Expected volatility(a)
   
102
%
Expected dividend yield
    
0.0
%
 
 
(a)
Reflects movements in our stock price over the most recent historical period equivalent to the expected life.
 
(b)
Based on the simplified method.