XML 28 R18.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 3 - Net Income Per Common Share (Tables)
 9 Months Ended
Sep. 30, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended
    
Nine Months Ended
  
   
September 30,
    
September 30,
  
(in thousands, except share and per share amounts)
  
2017
    
2016
    
2017
    
2016
  
Net income
   $
13,220
     $
11,982
     $
37,506
     $
33,335
  
                                 
Basic - weighted-average shares outstanding:
    
26,617,349
      
26,416,041
      
26,600,174
      
26,334,738
  
Effect of dilutive securities:
                                
Employee stock options and other
    
184,685
      
193,837
      
116,379
      
204,340
  
Diluted - weighted-average shares outstanding:
    
26,802,034
      
26,609,878
      
26,716,553
      
26,539,078
  
Net income per share:
                                
Basic
   $
0.50
     $
0.45
     $
1.41
     $
1.27
  
Diluted
   $
0.49
     $
0.45
     $
1.40
     $
1.26