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Net Income (Loss) Per Share (Tables)
 9 Months Ended
Sep. 30, 2015
Net Income (Loss) Per Share [Abstract]  
Computation of Basic and Diluted Income (Loss) Per Common Share
Basic and diluted income (loss) per common share is computed as follows (in thousands except share and per share data):

  
Three Months Ended September 30,
  
Nine Months Ended September 30,
 
  
2015
  
2014
  
2015
  
2014
 
Numerator:
        
Net income (loss) used for calculation of basic and diluted EPS
 
$
(15,442
)
 
$
(3,928
)
 
$
8,311
  
$
(19,295
)
                 
Denominator:
                
Weighted average shares outstanding, basic
  
33,339,163
   
27,751,437
   
30,952,458
   
27,227,151
 
Effect of dilutive securities:
                
Stock options and restricted stock units
  
-
   
-
   
2,007,775
   
-
 
Weighted average shares outstanding, diluted
  
33,339,163
   
27,751,437
   
32,960,233
   
27,227,151
 
                 
Net income (loss) per share, basic
 
$ 
(0.46
)
 
$ 
(0.14
)
 
$
0.27
  
$ 
(0.71
)
Net income (loss) per share, diluted
 
$ 
(0.46
)
 
$ 
(0.14
)
 
$
0.25
  
$ 
(0.71
)