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Note 21 - Quarterly Financial Data (Unaudited)
12 Months Ended
Dec. 31, 2016
Notes to Financial Statements  
Quarterly Financial Information [Text Block]
21.
Quarterly Financial Data
(unaudited)
 
Selected unaudited quarterly financial data for the fiscal years ended
December
31,
2016
and
2015
is presented below:
 
    2016   2015
    4th   3rd   2nd   1st   4th   3rd   2nd   1st
    (In thousands, except per share data)
Quarterly operating data:                                                                
Interest income   $
56,019
    $
55,524
    $
55,091
    $
54,363
    $
52,468
    $
51,913
    $
50,222
    $
49,543
 
Interest expense    
13,668
     
13,811
     
13,202
     
13,230
     
13,052
     
12,603
     
12,082
     
11,989
 
Net interest income    
42,351
     
41,713
     
41,889
     
41,133
     
39,416
     
39,310
     
38,140
     
37,554
 
Provision (benefit) for loan losses    
-
     
-
     
-
     
-
     
664
     
(370
)    
(516
)    
(734
)
Other operating income    
15,426
     
1,853
     
37,717
     
2,540
     
2,145
     
1,697
     
9,947
     
1,930
 
Other operating expense    
35,375
     
26,277
     
28,454
     
28,497
     
23,824
     
23,708
     
24,248
     
25,939
 
Income before income tax expense    
22,402
     
17,289
     
51,152
     
15,176
     
17,073
     
17,669
     
24,355
     
14,279
 
Income tax expense    
8,116
     
6,655
     
20,717
     
5,615
     
5,439
     
6,661
     
9,521
     
5,546
 
Net income   $
14,286
    $
10,634
    $
30,435
    $
9,561
    $
11,634
    $
11,008
    $
14,834
    $
8,733
 
                                                                 
                                                                 
Basic earnings per common share   $
0.50
    $
0.37
    $
1.05
    $
0.33
    $
0.40
    $
0.38
    $
0.51
    $
0.30
 
Diluted earnings per common share   $
0.50
    $
0.37
    $
1.05
    $
0.33
    $
0.40
    $
0.38
    $
0.51
    $
0.30
 
Dividends per common share   $
0.17
    $
0.17
    $
0.17
    $
0.17
    $
0.16
    $
0.16
    $
0.16
    $
0.16
 
                                                                 
Average common shares outstanding for:                                                                
Basic earnings per share    
28,850
     
28,861
     
29,022
     
29,097
     
28,862
     
28,927
     
29,246
     
29,397
 
Diluted earnings per share    
28,860
     
28,875
     
29,034
     
29,111
     
28,879
     
28,946
     
29,268
     
29,419