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Note 1 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Composition of Loan Portfolio [Table Text Block]
   
% of Total Loans
 
   
2012
   
2011
 
Residential real estate loans
    40.49 %     39.86 %
Commercial real estate loans
    31.35 %     34.67 %
Consumer loans
    17.91 %     17.92 %
Commercial and industrial loans
    10.25 %     7.55 %
      100.00 %     100.00 %