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Note 10 - Net Income Per Share
 3 Months Ended
Mar. 31, 2017
Notes to Financial Statements  
Earnings Per Share [Text Block]
1
0
.
NET INCOME PER SHARE
 
Basic net income per common share is computed by dividing the net income allocable to common stockholders by the weighted average number of common shares outstanding during the period. Diluted income per share further includes any common shares available to be issued upon
vesting or exercise of outstanding equity awards if such inclusion would be dilutive. 
 
The following table sets forth the computation of basic and diluted net income per common share (in thousands, except share and per share amounts):
 
   
Three Months Ended
March 31
,
  
   
201
7
    
201
6
  
Numerator:
                
Net income
   $
33,215
     $
27,044
  
Denominator:
                
Weighted average common shares outstanding - Basic
    
5,671,838
      
5,796,252
  
Effect of dilutive equity awards
(1)
    
59,063
      
14,387
  
Weighted average common shares outstanding - Diluted
    
5,730,901
      
5,810,639
  
                 
Net income per share:
                
Basic
   $
5.86
     $
4.67
  
Diluted
   $
5.80
     $
4.65
  
             
(1)
SARs outstanding that were not included in the diluted net income per share calculation because the effect would have been anti-dilutive were
443
and
1,038
for the
three
months ended
March
31,
2017
and
2016,
respectively.