Note 7 - Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Total	$ 2,786	$ 1,498
Core Deposits [Member]
Gross intangible assets	4,628	2,640
Accumulated amortization	(1,842)	(1,142)
Total	$ 2,786	$ 1,498