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Net (Loss) Income Per Share
 9 Months Ended
Sep. 30, 2015
Net (Loss) income Per Share [Abstract]  
Net (Loss) Income Per Share
3.  Net (Loss) Income Per Share

Our basic net (loss) income per share amounts have been computed by dividing net (loss) income by the weighted-average number of common shares outstanding during the period. For the current reporting periods, we reported net losses and, accordingly, potential common shares were not included since such inclusion would have been anti-dilutive. For the corresponding periods of 2014, we reported net income, and the computation of diluted earnings per share is based upon the weighted-average number of our common shares and dilutive effect of stock options (determined using the treasury stock method) and contingent consideration liability (arising from our 2013 acquisition of Molecular Insight). The calculations of net (loss) income per share, basic and diluted, are as follows:

  
Net (Loss) Income
 (Numerator)
  
Weighted Average
Common Shares
 (Denominator)
(in thousands)
  
Per Share
 Amount
 
Three months ended September 30, 2015
      
Basic and diluted
 
$
(10,014
)
  
69,705
  
$
(0.14
)
Nine months ended September 30, 2015
            
Basic and diluted
 
$
(31,965
)
  
69,663
  
$
(0.46
)
             
Three months ended September 30, 2014
            
Basic
 
$
36,975
   
69,556
  
$
0.53
 
   Dilutive effect of contingent consideration liability
  
500
   
3,295
     
   Dilutive effect of stock options
  
-
   
28
     
Diluted
 
$
37,475
   
72,879
  
$
0.51
 
Nine months ended September 30, 2014
            
Basic
 
$
16,589
   
67,712
  
$
0.24
 
   Dilutive effect of contingent consideration liability
  
-
   
-
     
   Dilutive effect of stock options
  
-
   
15
     
Diluted
 
$
16,589
   
67,727
  
$
0.24
 


For these periods, anti-dilutive common shares excluded from diluted per share amounts consist of the following:

  
Three Months Ended September 30,
 
  
2015
  
2014
 
  
Weighted
Average
 Number
(in thousands)
  
Weighted
Average
 Exercise Price
  
Weighted
Average
 Number
(in thousands)
  
Weighted
Average
 Exercise Price
 
Options
  
6,487
  
$
9.46
   
5,267
  
$
10.23
 
Contingent consideration liability
  
2,359
       
-
     
Total
  
8,846
       
5,267
     

  
Nine Months Ended September 30,
 
  
2015
  
2014
 
  
Weighted
Average
 Number
(in thousands)
  
Weighted
Average
 Exercise Price
  
Weighted
Average
 Number
(in thousands)
  
Weighted
Average
 Exercise Price
 
Options
  
6,484
  
$
9.77
   
5,357
  
$
10.31
 
Contingent consideration liability
  
2,709
       
3,295
     
Total
  
9,193
       
8,652