Note 13 - Income Taxes - Reconciliation Between Statutory Federal Income Tax Rate and Effective Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Federal Statutory Income Tax	$ 6,269	$ 3,648	$ 3,043
Tax Exempt Income	(556)	(512)	(701)
Adjustment to Deferred Taxes for Enactment of 21% Federal Statutory Rate on December 22, 2017			1,668
Goodwill write-off	216
Other - Net	151	143	93
Provision for Income Taxes	$ 6,080	$ 3,279	$ 4,103