Note 6 - Premises and Equipment (Details) - Premises and Equipment - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 19,697	$ 24,045
Accumulated depreciation	(10,677)	(14,914)
Premises and equipment, net	9,020	9,131
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	13,097	13,338
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment	$ 6,600	$ 10,707