Note 8 - Deposits - Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Non-interest bearing	$ 221,993	$ 193,752
Non-interest bearing deposits	24.20%	21.70%
Interest bearing demand deposits, weighted average rate	0.13%	0.42%
Interest bearing demand deposits, amount	$ 545,846	$ 511,928
Interest bearing demand deposits	59.40%	57.30%
Time deposits, weighted average rate	1.78%	2.03%
Time deposits, amount	$ 150,657	$ 187,947
Time deposits	16.40%	21.00%
Weighted average rate	0.37%	0.67%
Amount	$ 918,496	$ 893,627
Percent	100.00%	100.00%