Note 4 - Fair Value Disclosure Measurements (Details) - Additional Quantitative Information About Assets Measured at Fair Value on Non-Recurring Basis (USD $) In Thousands, unless otherwise specified					6 Months Ended								6 Months Ended
	Jun. 30, 2013 Appraisal Adjustments [Member] Impaired Loans [Member]		Dec. 31, 2012 Appraisal Adjustments [Member] Impaired Loans [Member]		Jun. 30, 2013 Appraisal Adjustments [Member] Minimum [Member] Impaired Loans [Member]	Jun. 30, 2013 Appraisal Adjustments [Member] Maximum [Member] Impaired Loans [Member]	Jun. 30, 2013 Liquidation Expenses [Member] Minimum [Member] Impaired Loans [Member]	Jun. 30, 2013 Liquidation Expenses [Member] Maximum [Member] Impaired Loans [Member]	Jun. 30, 2013 Appraisal of Collateral [Member] Other Real Estate Owned [Member]		Dec. 31, 2012 Appraisal of Collateral [Member] Other Real Estate Owned [Member]		Jun. 30, 2013 Appraisal of Collateral [Member] Minimum [Member] Other Real Estate Owned [Member]	Jun. 30, 2013 Appraisal of Collateral [Member] Maximum [Member] Other Real Estate Owned [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Estimate (in Dollars)	$ 15,287	[1],[2]	$ 17,600	[1],[2]					$ 2,361	[1],[3]	$ 1,846	[1],[3]
Range					0.00%	(68.00%)	0.00%	(45.80%)					0.00%	(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.

[2] Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.

[3] Includes qualitative adjustments by management and estimated liquidation expenses.