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Restricted Stock Units (Tables)
12 Months Ended
Dec. 31, 2015
Equity [Abstract]  
Summary of Restricted Stock Unit Activity

The following is a summary of the RSU activity for the years ended December 31, 2015, 2014 and 2013:

 

     Number of
Restricted
Stock Units
Outstanding
     Weighted
Average
Grant
Date Fair
Value
 

Unvested, December 31, 2012

     —           —     

Granted

     210,000       $ 7.19   

Vested

     —           —     
  

 

 

    

 

 

 

Unvested, December 31, 2013

     210,000       $ 7.19   

Granted

     —           —     

Vested

     (70,000      7.19   
  

 

 

    

 

 

 

Unvested, December 31, 2014

     140,000       $ 7.19   

Granted

     380,000         2.94   

Vested

     (70,000      7.19   

Forfeited

     (27,500      2.94   
  

 

 

    

 

 

 

Unvested, December 31, 2015

     422,500       $ 3.64