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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
3 Months Ended
Mar. 31, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Stock-Based Compensation Expense
Stock-based compensation expense recognized under ASC 718 was as follows:

 
 
Three Months Ended
March 31,
 
 
 
2014
  
2013
 
Research and development
 
$
-
  
$
13,200
 
General and administrative
  
5,354
   
13,200
 
Total stock-based compensation expense
 
$
5,354
  
$
26,400
 
Summary of Stock Option Activity
A summary of our stock option activity during the three months ended March 31, 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
  
-
   
-
 
Forfeited
  
-
   
-
 
Exercised
  
(51,000
)
  
1.30
 
Expired
  
-
   
-
 
Outstanding as of March 31, 2014
  
1,116,000
  
$
9.38
 
 
Exercisable as of March 31, 2014
 
1,081,000
$
8.90