Note 25 - Qualified Affordable Housing Partnership Investments (Details Textual) - USD ($) $ in Thousands	12 Months Ended		24 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2015
Proportional Amortization Method Qualified Affordable Housing Project Investments	$ 4,217	$ 4,815	$ 4,815
Proportional Amortization Method Qualified Affordable Housing Project Investments Unfunded Liability Obligation	$ 485	1,182	1,182
Qualified Affordable Housing Project Investments Term	18 years
Proportional Amortization Method Qualified Affordable Housing Project Investments Amortization	$ 598	$ 714	$ 903
Minimum [Member]
Qualified Affordable Housing Project Investments Return Rate	5.00%
Maximum [Member]
Qualified Affordable Housing Project Investments Return Rate	8.00%