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STOCK-BASED COMPENSATION PLAN AND WARRANTS (Tables)
6 Months Ended
Jun. 30, 2014
STOCK-BASED COMPENSATION PLAN AND WARRANTS [Abstract]  
Summary of the status of stock options
A summary of the status of stock options under the Plan as of June 30, 2014 and December 31, 2013 is as follows:

 
 
6/30/2014
  
12/31/2013
 
 
 
Number of Shares
  
Weighted Average Exercise Price
  
Number of Shares
  
Weighted Average Exercise Price
 
Outstanding at beginning of year
  
9,583,762
  
$
1.16
   
7,728,877
  
$
1.01
 
Granted
  
2,069,300
  
$
0.57
   
2,176,535
  
$
1.67
 
Exercised
  
-
  
$
-
   
(293,650
)
 
$
0.98
 
Expired and Cancelled
  
(160,000
)
 
$
1.36
   
(28,000
)
 
$
2.18
 
 
  
11,493,062
       
9,583,762
     
 
                
Outstanding, end of period
  
11,493,062
  
$
1.05
   
9,583,762
  
$
1.16
 
 
                
Exercisable at end of period
  
10,420,912
  
$
1.11
   
9,536,262
  
$
1.17
 
Stock option valuation assumptions
 
6/30/2014
 
Weighted average fair value per option granted
 
$
0.4968
 
Risk-free interest rate
  
1.75
%
Expected dividend yield
  
0.00
%
Expected lives
  
2.688
 
Expected volatility
  
98.91
%
Stock options outstanding by price range
Stock options outstanding at June 30, 2014 are as follows:

  
  
Weighted
  
  
 
  
  
Average
  
Weighted
  
 
  
  
Remaining
  
Average
  
 
  
Options
  
Contractual
  
Exercise
  
Options
 
Range of Exercise Prices
  
Outstanding
  
Life
  
Price
  
Exercisable
 
$
0.01-$1.50
   
9,099,527
   
2.5
  
$
0.75
   
8,027,377
 
$
1.51-$3.00
   
2,268,535
   
3.5
  
$
1.67
   
2,268,535
 
$
3.01-$5.00
   
125,000
   
3.6
  
$
3.11
   
125,000
 
     
11,493,062
   
2.7
  
$
1.06
   
10,420,912
 
Summary of warrant activity
The summary of the status of the warrants issued by the Company as of June 30, 2014 and December 31, 2013 are as follows:

 
 
6/30/2014
  
  
12/31/2013
  
 
 
 
Number of Warrants
  
Weighted Average Exercise Price
  
Number of Warrants
  
Weighted Average Exercise Price
 
Outstanding at beginning of year
  
16,688,265
  
$
1.44
   
23,392,811
  
$
1.46
 
Granted
  
-
  
$
-
   
4,010,295
  
$
1.18
 
Exercised
  
-
  
$
-
   
(2,287,730
)
 
$
1.28
 
Cashless Exercises
  
-
  
$
-
   
(8,082,535
)
 
$
1.43
 
Expired and Cancelled
  
(196,914
)
 
$
0.74
   
(344,576
)
 
$
0.88
 
 
  
16,491,351
       
16,688,265
     
 
                
Outstanding, end of period
  
16,491,351
  
$
1.44
   
16,688,265
  
$
1.44
 
 
                
Exercisable at end of period
  
16,491,351
  
$
1.44
   
16,688,265
  
$
1.44