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Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans $ 756,814 $ 738,282 $ 733,940
Consumer Credit Card Financing Receivable [Member] | Performing Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 0 0  
Consumer Credit Card Financing Receivable [Member] | Nonperforming Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 3 17  
Consumer Credit Card Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 3 17  
Consumer Other Financing Receivable [Member] | Performing Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 49,205 50,310  
Consumer Other Financing Receivable [Member] | Nonperforming Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 188 247  
Consumer Other Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 49,393 50,557  
Consumer [Member] | Performing Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 49,205 50,310  
Consumer [Member] | Nonperforming Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 191 264  
Consumer [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 49,396 50,574 51,371
All Other [Member] | Performing Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 10,569 9,429  
All Other [Member] | Nonperforming Financing Receivable [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans 1 2  
All Other [Member]
      
Note 5 - Loans (Details) - Consumer Loans by Credit Quality Indicators [Line Items]      
Gross Loans $ 10,570 $ 9,431 $ 9,121