Note 21 - Fair Value Measurements - Fair Value of Financial Assets Measured on a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Impaired loans (1) (2) (collateral dependent)	[1],[2]	$ 11,229	$ 17,154
Foreclosed assets and other real estate owned (1)	[2]	19,506	17,806
Fair Value, Inputs, Level 3 [Member]
Impaired loans (1) (2) (collateral dependent)	[1],[2]	11,229	17,154
Foreclosed assets and other real estate owned (1)	[2]	19,506	17,806
Fair Value, Inputs, Level 1 [Member]
Foreclosed assets and other real estate owned (1)	[2]
Fair Value, Inputs, Level 2 [Member]
Foreclosed assets and other real estate owned (1)	[2]

[1] Specific allocations of $2,195,000 and $2,384,000 were related to the impaired collateral dependent loans for which fair value re-measurements took place during the periods ended September 30, 2017 and December 31, 2016, respectively.

[2] These amounts represent the resulting carrying amounts on the Consolidated Balance Sheets for impaired collateral dependent loans and foreclosed assets held for sale for which fair value re-measurements took place during the period.