Note 7 - Premises and Equipment - Bank Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment, Gross	$ 14,938	$ 14,980
Less: Accumulated Depreciation	(6,158)	(5,699)
Property, Plant and Equipment, Net	8,780	9,281
Land [Member]
Property, Plant and Equipment, Gross	2,098	2,098
Building and Leasehold Improvements [Member]
Property, Plant and Equipment, Gross	7,143	6,875
Furniture and Equipment [Member]
Property, Plant and Equipment, Gross	$ 5,697	$ 6,007