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Note A - Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2017
Notes Tables  
Composition of Loan Portfolio [Table Text Block ]
   
% of Total Loans
  
   
201
7
    
201
6
  
Residential real estate loans
    
40.19
%
    
38.92
%
Commercial real estate loans
    
27.74
%
    
29.12
%
Consumer loans
    
18.15
%
    
18.27
%
Commercial and industrial loans
    
13.92
%
    
13.69
%
     
100.00
%
    
100.00
%