Note 7 - Other Real Estate Owned ("OREO") - Activity in OREO (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Beginning balance	$ 1,906	$ 2,400	$ 2,945
Additions	0	0	446
Sold	(1,906)	(446)	(991)
Write-downs	0	(48)	0
Ending balance	$ 0	$ 1,906	$ 2,400