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6. STOCK-BASED COMPENSATION (Tables)
 6 Months Ended
Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
STOCK-BASED COMPENSATION

The following summarizes all of our option and warrant transactions during the six months ended June 30, 2014:

 

                Weighted Average        
          Weighted Average     Remaining     Aggregate  
Outstanding Options and Warrants         Exercise price     Contractual Life     Intrinsic  
Under the 2006 Plan and 2000 Plan   Shares     Per Common Share     (in years)     Value  
                         
Balance, December 31, 2013     4,701,250     $ 3.15                  
Granted     –       –                  
Exercised     (2,129,083 )     2.40                  
Canceled or expired     (300,000 )     6.10                  
Balance, June 30, 2014     2,272,167       3.46       1.65     $ 7,799,490  
Exercisable at June 30, 2014     2,062,167       3.54       1.51       6,972,755  

 

                Weighted Average        
          Weighted Average     Remaining     Aggregate  
Non-Plan         Exercise price     Contractual Life     Intrinsic  
Outstanding Warrants   Shares     Per Common Share     (in years)     Value  
Balance, December 31, 2013     200,000     $ 2.62                  
Granted     –       –                  
Exercised     –       –                  
Canceled or expired     –       –                  
Balance, June 30, 2014     200,000       2.62       1.42     $ 802,000  
Exercisable at June 30, 2014     200,000       2.62       1.42       802,000