Note 8 - Disclosures about Fair Value of Assets and Liabilities (Details) - Fair Value Quantitative Information (USD $) In Thousands, unless otherwise specified			9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Foreclosed Assets Held for Sale [Member] Fair Value, Inputs, Level 3 [Member]	Sep. 30, 2014 Collateral Dependent [Member] Fair Value, Inputs, Level 3 [Member] Minimum [Member]	Sep. 30, 2014 Collateral Dependent [Member] Fair Value, Inputs, Level 3 [Member] Maximum [Member]	Sep. 30, 2014 Collateral Dependent [Member] Fair Value, Inputs, Level 3 [Member]	Sep. 30, 2014 Collateral Dependent [Member] Weighted Average [Member]	Sep. 30, 2014 Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, fair value	$ 6,417	$ 16,171				$ 5,067
Valuation technique			Market Comparable			Market Comparable		Discounted cash flow
Unobservable input			Discount to reflect realizable value			Discount to reflect realizable value		Discount rate
Range (weighted average)			0.00%	0.00%	44.00%		14.00%	0.00%
Range (weighted average)			0.00%	0.00%	(44.00%)		(14.00%)	0.00%