Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Employee and Director Benefits (Tables)

v3.7.0.1
Note 6 - Employee and Director Benefits (Tables)
 3 Months Ended
Mar. 31, 2017
Notes Tables  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
    2017   2016
Expected volatility    
29.00
 %    
29.00
 %
Expected dividends    
0.43
 %    
0.60
 %
Expected term (in years)    
6
      
6
  
Risk-free rate    
2.08
 %    
1.92
 %
Share-based Compensation, Stock Options, Activity [Table Text Block]
            Weighted    
        Weighted   Average    
        Average   Remaining    
        Exercise   Contractual   Aggregate
    Shares   Price   Term (years)   Intrinsic Value
                (In Thousands)
Three Months Ended March 31, 2017:                                
Outstanding at January 1, 2017    
2,026,334
     $
9.00
      
6.2
     $
57,636
  
Granted    
51,500
      
38.10
      
9.8
      
(89
 )
Exercised    
(175,500
 )    
5.28
      
5.0
      
5,459
  
Forfeited    
(27,000
 )    
21.55
      
8.8
      
401
  
Outstanding at March 31, 2017    
1,875,334
      
9.96
      
6.2
     $
49,540
  
                                 
Exercisable at March 31, 2017    
928,236
     $
5.12
      
4.6
     $
29,013
  
                                 
Three Months Ended March 31, 2016:                                
Outstanding at January 1, 2016    
2,498,834
     $
6.66
      
6.3
     $
42,743
  
Granted    
198,000
      
19.11
      
9.8
      
-
  
Exercised    
(411,000
 )    
4.27
      
4.6
      
7,372
  
Forfeited    
(9,000
 )    
19.52
      
9.3
      
24
  
Outstanding at March 31, 2016    
2,276,834
      
8.12
      
6.7
     $
32,058
  
                                 
Exercisable at March 31, 2016    
782,836
     $
4.74
      
5.2
     $
13,672