Note 2 - Business Combinations - Summary of Loans at Acquisition Date (Details) - USD ($)
$ in Thousands
Oct. 31, 2015
Dec. 15, 2014
Reunion Bank of Florida [Member]    
Acquired Impaired Loans $ 5,163  
Acquired Performing Loans 253,251  
Loans 258,414  
Reunion Bank of Florida [Member] | Commercial, Financial and Agricultural Portfolio Segment [Member]    
Acquired Impaired Loans 296  
Acquired Performing Loans 36,601  
Loans 36,897  
Reunion Bank of Florida [Member] | Real Estate Portfolio Segment [Member] | Mortgage Loans [Member]    
Acquired Impaired Loans 4,717  
Acquired Performing Loans 188,648  
Loans 193,365  
Reunion Bank of Florida [Member] | Real Estate Portfolio Segment [Member] | Construction Loans [Member]    
Acquired Impaired Loans 116  
Acquired Performing Loans 23,931  
Loans 24,047  
Reunion Bank of Florida [Member] | Consumer Portfolio Segment [Member]    
Acquired Impaired Loans 34  
Acquired Performing Loans 4,071  
Loans $ 4,105  
United Group Banking Company of Florida, Inc. [Member]    
Acquired Impaired Loans   $ 9,027
Acquired Performing Loans   140,899
Loans   149,926
United Group Banking Company of Florida, Inc. [Member] | Commercial, Financial and Agricultural Portfolio Segment [Member]    
Acquired Impaired Loans   929
Acquired Performing Loans   22,274
Loans   23,203
United Group Banking Company of Florida, Inc. [Member] | Real Estate Portfolio Segment [Member] | Mortgage Loans [Member]    
Acquired Impaired Loans   6,844
Acquired Performing Loans   105,361
Loans   112,205
United Group Banking Company of Florida, Inc. [Member] | Real Estate Portfolio Segment [Member] | Construction Loans [Member]    
Acquired Impaired Loans   918
Acquired Performing Loans   7,377
Loans   8,295
United Group Banking Company of Florida, Inc. [Member] | Consumer Portfolio Segment [Member]    
Acquired Impaired Loans   336
Acquired Performing Loans   5,887
Loans   $ 6,223