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Note 13 - Earnings Per Share
 12 Months Ended
Dec. 31, 2016
Notes to Financial Statements  
Earnings Per Share [Text Block]
13.
Earnings Per Share
 
The following table sets forth the computation of basic and diluted earnings per share:
 
(in
thousands, except per share amounts
)
 
2016
 
 
2015
 
 
2014
 
Numerator:
 
 
 
 
 
 
 
 
 
 
 
 
Net income as reported
  $
104,488
     $
80,866
     $
98,100
  
                         
Denominator
:
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average shares outstanding
                        
Basic
    
22,559
      
22,565
      
22,543
  
Effect of dilutive securities
    
167
      
154
      
184
  
Diluted
    
22,727
      
22,719
      
22,727
  
                         
Earnings Per Share:
 
 
 
 
 
 
 
 
 
 
 
 
Basic earnings per share
   $
4.63
     $
3.58
     $
4.35
  
Diluted earnings per share
   $
4.60
     $
3.56
     $
4.32
  
 
Potential shares of common stock attributable to stock options excluded from the earnings per share calculation because their effect would be anti-dilutive were
53,448
shares,
113,130
shares, and
43,693
shares in
2016,
2015,
and
2014,
respectively.