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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2013
Stock Option Activity
A summary of stock option activity for the three months ended March 31, 2013 is presented below:

   
Number of
Shares
   
Wtd. Avg.
Exercise Price
   
Wtd. Avg.
Remaining
Contract Term
(# years)
   
Intrinsic
Value
 
Outstanding at January 1, 2013
    824,620     $ 5.54              
Granted
    125,000       2.34              
Exercised
    -       -              
Forfeited and canceled
    (46,331 )     4.73              
                             
Outstanding at March 31, 2013
    903,289     $ 5.14       7.7     $ 104,769  
                                 
Exercisable at March 31, 2013
    485,124     $ 6.63       6.5     $ 100,730  
Warrant Activity
A summary of warrant activity for the three months ended March 31, 2013 is presented below:

   
Number of
Shares
   
Wtd. Avg.
Exercise Price
   
Wtd. Avg.
Remaining
Contract Term
(# years)
   
Intrinsic
Value
 
Outstanding at January 1, 2013
    3,579,087     $ 5.64              
Granted
    972,918       2.21              
Exercised
    -       -              
Forfeited and canceled
    (1,129,359 )     7.65              
                             
Outstanding at March 31, 2013
    3,422,646     $ 4.01       3.5     $ 480,000  
                                 
Exercisable at March 31, 2013
    3,422,646     $ 4.01       3.5     $ 480,000