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Stock-Based Awards
3 Months Ended
Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock-Based Awards
6. Stock-Based Awards

The Company grants equity awards to employees and directors. Options are issued generally for terms of ten years and vest between two to four years. Options are issued with an exercise price equal to the fair value of the Company on the date of grant. The Company estimated the fair value for options using the Black-Scholes option pricing model. All restricted stock and option awards require future service as a condition of vesting with certain awards subject to acceleration under certain conditions. Restricted stock awards generally vest over three years.

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   
  

 

 

    

 

 

    

 

 

 

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

 

    

For the Three Months Ended March 31,

      
   2015    2014     
   $2,344    $ 2,015      
  

 

  

 

 

    

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