Note 21 - Disclosures Regarding Fair Value (Details) - Significant Unobservable Inputs Used in Fair Value Measurements for Level 3 Assets Measured at Fair Value on a Nonrecurring Basis - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Assets
Fair value	$ 4,663	$ 4,799
Fair Value, Inputs, Level 3 [Member]
Assets
Fair value	3,989	4,717
Fair Value, Inputs, Level 3 [Member] | Foreclosed Real Estate and Repossessed Personal Property [Member]
Assets
Fair value	$ 3,989	$ 4,717
Valuation technique	Appraisals of collateral value	Appraisals of collateral value
Significant unobservable inputs	Adjustments to appraisal for age of comparable sales	Adjustments to appraisal for age of comparable sales