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Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings $ 29,447 $ 33,278
Loans, Gross [Member] | Performing Financing Receivable [Member]
    
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings 27,012 30,154
Loans, Gross [Member] | Nonperforming Financing Receivable [Member]
    
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings 2,435 3,124
Loans, Gross [Member]
    
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings 29,447 33,278
Other Loans Held For Sale [Member] | Performing Financing Receivable [Member]
    
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings 0 0
Other Loans Held For Sale [Member] | Nonperforming Financing Receivable [Member]
    
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings 0 0
Other Loans Held For Sale [Member]
    
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings 0 0
Performing Financing Receivable [Member]
    
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings 27,012 30,154
Nonperforming Financing Receivable [Member]
    
Note 5 - Loans (Details) - Carrying Balance of Troubled Debt Restructurings [Line Items]    
Troubled debt restructurings $ 2,435 $ 3,124