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Note 4 - Fair Value Measurements (Details) - Additional Quantitative Information About Assets Measured at Fair Value on Non-Recurring Basis (Appraisal Adjustments [Member], USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Impaired Loans [Member]
    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair Value Estimate (in Dollars) $ 15,510 $ 17,158
Valuation Techniques/Unobservable Input Appraisal of collateral (1) [1]  
Other Real Estate Owned [Member]
    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Fair Value Estimate (in Dollars) $ 2,656 $ 2,698
Valuation Techniques/Unobservable Input Appraisal of collateral (1) [1]  
Minimum [Member] | Impaired Loans [Member]
    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range (Weighted Average) 0.00%  
Range (Weighted Average) 0.00%  
Minimum [Member] | Other Real Estate Owned [Member]
    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range (Weighted Average) 0.00%  
Range (Weighted Average) 0.00%  
Maximum [Member] | Impaired Loans [Member]
    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range (Weighted Average) (55.00%)  
Range (Weighted Average) 55.00%  
Maximum [Member] | Other Real Estate Owned [Member]
    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range (Weighted Average) (10.00%)  
Range (Weighted Average) 10.00%  
Weighted Average [Member] | Impaired Loans [Member]
    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range (Weighted Average) (27.30%)  
Range (Weighted Average) 27.30%  
Weighted Average [Member] | Other Real Estate Owned [Member]
    
Fair Value Inputs, Assets, Quantitative Information [Line Items]    
Range (Weighted Average) (7.50%)  
Range (Weighted Average) 7.50%  
[1] Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable.