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Note 16 - Other Operating Expenses (Tables)
12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]
(In thousands)   2017   2016   2015
             
Professional services   $
19,500
    $
14,630
    $
9,583
 
Postage    
4,686
     
4,599
     
4,219
 
Telephone    
4,262
     
4,294
     
4,817
 
Credit card expense    
12,188
     
11,328
     
9,157
 
Marketing    
11,141
     
6,929
     
6,337
 
Operating supplies    
1,980
     
1,824
     
2,395
 
Amortization of intangibles    
7,668
     
5,945
     
4,889
 
Branch right sizing expense    
434
     
3,600
     
3,297
 
Other expense    
27,020
     
20,364
     
20,001
 
Total other operating expenses   $
88,879
    $
73,513
    $
64,695