Note 6 - Premises and Equipment - Components of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Premises and equipment	$ 33,813	$ 29,758
Less: accumulated depreciation and amortization	(17,907)	(16,639)
Premises and equipment, net	15,906	13,119
Land [Member]
Premises and equipment	2,523	2,063
Land Improvements [Member]
Premises and equipment	243	241
Bank Buildings [Member]
Premises and equipment	15,222	13,076
Furniture, Fixtures and Equipment [Member]
Premises and equipment	13,341	12,682
Software and Software Development Costs [Member]
Premises and equipment	1,624	1,624
Assets Not Yet Placed in Service [Member]
Premises and equipment	$ 860	$ 72

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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