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Stock-Based Awards (Tables)
 3 Months Ended
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Options and Restricted Stock Activity

A summary of options and restricted stock activity is as follows:

 

     Options      Weighted
Average
Exercise Price
of Options		      Restricted
Stock
Awards		  

Balance at January 1, 2015

      5,330,070       $ 1.61         1,513,939   

Granted

      —        $ —          514,116   

Exercised/vested

      (2,270,064 )     $ 0.94         (610,299 ) 

Forfeitures

      —        $ —          —     
  

 

 

     

 

 

     

 

 

  

Balance at March 31, 2015

   3,060,006    $ 2.11      1,417,756   
  

 

 

     

 

 

     

 

 

  
Summary of Stock-Based Compensation Expense

A summary of stock-based compensation expense is as follows:

 

    

For the Three Months Ended March 31,

       
   2015    2014     
   $2,344    $ 2,015      
  

 

   

 

 

     
Summary of Unrecognized Stock-Based Compensation Expense and Average Remaining Vesting Period

A summary of unrecognized stock-based compensation expense and average remaining vesting period is as follows:

 

     March 31, 2015  
     Unrecognized Stock-Based
Compensation		      Average
Remaining
Vesting Period		  

Employees and directors option awards

    $ 307         0.70   

Employees and directors restricted stock awards

    $ 17,377         1.90