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12. STOCK-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of options and warrants

Outstanding Options and Warrants
Under the 2006 Plan
  Shares     Weighted
Average 
exercise
price
Per
Common
Share
    Weighted
Average
Remaining
Contractual
Life
(in years)
    Aggregate
Intrinsic
Value
 
Balance, December 31, 2013     4,701,250     $ 3.15                  
Granted                            
Exercised     (2,293,741 )     2.38                  
Canceled, forfeited or expired     (315,000 )     5.91                  
Balance, December 31, 2014     2,092,509       3.58       1.19     $ 10,307,826  
Exercisable at December 31, 2014     2,049,176       3.61       1.14       10,030,655  

 

 

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

 

Assumptions used for estimating fair value

        Weighted-AverageRemaining Contractual     Weighted-Average  
  Shares     Term (Years)     Fair Value  
RSA's outstanding at December 31, 2013   786,667             $ 2.50  
Changes during the period                      
Granted   1,026,785             $ 1.71  
Vested   (871,428 )           $ 2.16  
RSA's at December 31, 2014   942,024       1.01     $ 1.96