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Net Income (Loss) and Income (Loss) per Share (Tables)
 6 Months Ended
Jun. 30, 2015
Net Income (Loss) and Income (Loss) per Share [Abstract]  
Reconciliation of basic and diluted income per share computations
The following table presents a reconciliation of basic and diluted income (loss) per share computations (in thousands, except per share data):

  
Three months ended
June 30,
  
Six months ended
June 30,
 
  
2015
  
2014
  
2015
  
2014
 
Numerator:
 
  
  
  
 
Income (loss) from continuing operations
 
$
13,214
  
$
4,635
   
6,602
   
(3,196
)
Loss from discontinued operations
  
-
   
(8,820
)
  
-
   
(8,540
)
Net income (loss)
 
$
13,214
  
$
(4,185
)
 
$
6,602
  
$
(11,736
)
                 
Denominator:
                
Weighted-average shares outstanding
  
17,028
   
16,823
   
16,990
   
16,789
 
Effect of unvested restricted stock awards considered participating securities
  
270
   
224
   
301
   
-
 
Weighted-average shares outstanding - basic
  
17,298
   
17,047
   
17,291
   
16,789
 
Effect of diluted restricted stock and performance share awards
  
79
   
112
   
132
   
-
 
Weighted-average shares outstanding – diluted
  
17,377
   
17,159
   
17,423
   
16,789
 
                 
Income (loss) from continuing operations - basic
  
0.76
   
0.27
   
0.38
   
(0.19
)
Loss from discontinued operations - basic
  
-
   
(0.52
)
  
-
   
(0.51
)
Net income (loss) per share - basic
 
$
0.76
  
$
(0.25
)
 
$
0.38
  
$
(0.70
)
                 
Income (loss) from continuing operations - diluted
  
0.76
   
0.27
   
0.38
   
(0.19
)
Loss from discontinued operations - diluted
  
-
   
(0.52
)
  
-
   
(0.51
)
Net income (loss) per share - diluted
 
$
0.76
  
$
(0.25
)
 
$
0.38
  
$
(0.70
)
                 
Stock options, restricted stock units, restricted stock awards, and performance share awards excluded from the calculation of diluted earnings per share because their effect would have been anti-dilutive
  
443
   
774
   
447
   
799