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	6 Months Ended
	Jun. 30, 2014		Dec. 31, 2013
Impaired Loans [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Estimate	$ 14,029		$ 17,158
Valuation Techniques/Unobservable Input	Appraisal of collateral (1)	[1]
Impaired Loans [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	(20.00%)
Impaired Loans [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	(55.00%)
Other Real Estate Owned [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Estimate	$ 2,392		$ 2,698
Valuation Techniques/Unobservable Input	Appraisal of collateral (1)	[1]
Other Real Estate Owned [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	0.00%
Other Real Estate Owned [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	(10.00%)

[1] Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable.