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Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans $ 44,185 $ 42,095
Loans, Gross [Member] | Performing Troubled Debt Restructured Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans 27,012 30,154
Loans, Gross [Member] | Non Performing Troubled Debt Restructured Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans 2,435 3,124
Loans, Gross [Member] | Non Performing Other Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans 4,455 2,628
Loans, Gross [Member] | Performing Other Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans 10,283 5,413
Loans, Gross [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans 44,185 41,319
Other Loans Held For Sale [Member] | Performing Troubled Debt Restructured Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans   0
Other Loans Held For Sale [Member] | Non Performing Troubled Debt Restructured Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans   0
Other Loans Held For Sale [Member] | Non Performing Other Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans   776
Other Loans Held For Sale [Member] | Performing Other Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans   0
Other Loans Held For Sale [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans   776
Performing Troubled Debt Restructured Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans 27,012 30,154
Non Performing Troubled Debt Restructured Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans 2,435 3,124
Non Performing Other Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans 4,455 3,404
Performing Other Loans [Member]
    
Note 5 - Loans (Details) - Composition of Troubled Debt Restructurings Impaired Loans [Line Items]    
Total impaired loans $ 10,283 $ 5,413