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Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Fair Value of Option Grants

The fair value of option grants is estimated on the grant date using the Black-Scholes option-pricing model with the following assumptions for option grants during the six months ended June 30, 2013 and 2012:

 

     The Six Months  Ended
June 30,
 
     2013     2012  

Expected volatility

     48.49     48.49

Expected dividends

     0.00     0.00

Expected term (in years)

     10.00        10.00   

Risk-free rate

     1.76     2.20

Vesting period (in years)

     5        5   
Summary of Company's Stock Option Plan Activity

A summary of the status of the Company’s stock option plan is presented below (shares in thousands):

 

     Number of
Shares
    Weighted
Average

Price
Per  Share
     Weighted
Average
Remaining
Contractual
Life (Years)
     Aggregate
Intrinsic
Value
 

Options outstanding at January 1, 2013

     887      $ 8.66         

Granted

     100        16.73         

Exercised

     (98     5.46         

Forfeited

     —         —          
  

 

 

   

 

 

       

Options outstanding at June 30, 2013

     889      $ 9.92         6.0       $ 13,403   
  

 

 

   

 

 

    

 

 

    

 

 

 

Options exercisable at June 30, 2013

     561      $ 6.64         4.2       $ 10,296   
  

 

 

   

 

 

    

 

 

    

 

 

 

Available for grant at June 30, 2013

     988           
  

 

 

         
Summary of Vesting Status of Options Outstanding

Information on the activity of options for the six months ended June 30, 2013 follows (shares in thousands):

 

     2013  
     Shares     Weighted Average
Grant  Date

Fair Value
 

Non-vested options at January 1, 2013

     285      $ 15.00   

Granted

     100        16.73   

Vested

     (57     15.00   

Forfeited

     —          —     
  

 

 

   

 

 

 

Non-vested options at June 30, 2013

     328      $ 15.53