Note 7 - Goodwill and Other Intangibles - Core Deposit Intangibles (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2015
Core deposit intangible acquired in Peoples acquisition			$ 1,400
Finite-Lived Intangible Assets, Net, Ending Balance	$ 526	$ 672
Core Deposits [Member]
Core deposit intangible acquired in Peoples acquisition	1,418	1,418
Less accumulated amortization	892	746
Finite-Lived Intangible Assets, Net, Ending Balance	$ 526	$ 672