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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
9 Months Ended
Sep. 30, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Assumptions Used to Estimate the Fair Values of the Stock Options Granted
The following table presents the assumptions used to estimate the fair values of the stock options granted in the nine-month periods presented:

  
September
2014
  
September
2013
 
Risk-free interest rate
  
1.66
%
  
1.21
%
Expected volatility
  
32
%
  
35
%
Expected life (in years)
  
5
   
5
 
Dividend yield
  
-
   
-
 
Stock-Based Compensation Expense
Stock-based compensation expense recognized under ASC 718 was as follows:

  
Three Months Ended
September 30,
  
Nine Months Ended
September 30,
 
  
2014
  
2013
  
2014
  
2013
 
Research and development
 
$
-
  
$
-
  
$
-
  
$
92,249
 
General and administrative
  
5,354
   
1,172
   
16,062
   
14,372
 
Total stock-based compensation expense
 
$
5,354
  
$
1,172
  
$
16,062
  
$
106,621
 
Summary of Stock Option Activity
A summary of our stock option activity during the nine months ended September 30, 2014 is presented below:

  
Total Number
  
Weighted-Average
 
Options
 
of Shares
  
Exercise Price
 
Outstanding as of December 31, 2013
  
1,167,000
  
$
9.03
 
Granted
  
15,000
   
26.48
 
Forfeited
  
(15,000
)
  
26.48
 
Exercised
  
(175,000
)
  
1.17
 
Expired
  
-
   
-
 
Outstanding as of September 30, 2014
  
992,000
  
$
10.41
 
         
Exercisable as of September 30, 2014
  
960,750
  
$
9.93