XML 28 R16.htm IDEA: XBRL DOCUMENT v3.7.0.1
Note 6 - Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended
June 30,
    
Six Months Ended
June 30,
  
   
2017
    
201
6
    
201
7
    
201
6
  
Net Income
   $
11,937
     $
10,583
     $
22,114
     $
20,474
  
                                 
Weighted-average number of basic shares outstanding during the period
    
18,775
      
19,008
      
18,840
      
19,001
  
Dilutive effect of stock options
, RSUs, and PSAs
    
311
      
285
      
412
      
319
  
Weighted-average number of diluted shares outstanding during the period
    
19,086
      
19,293
      
19,252
      
19,320
  
                                 
Basic earnings per share
   $
0.64
     $
0.56
     $
1.17
     $
1.08
  
Diluted earnings per share
   $
0.63
     $
0.55
     $
1.15
     $
1.06