Note 9 - Borrowed Funds - Schedule of Borrowed Funds (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Short-term borrowed funds	$ 7,050	$ 2,050
Short-term borrowed funds, average balance	$ 2,143	$ 4,366
Short-term borrowed funds, average rate	4.13%	3.00%
Long-term borrowed funds	$ 15,000	$ 30,000
Long-term borrowed funds, average balance	$ 27,658	$ 35,530
Long-term borrowed funds, average rate	2.12%	2.16%
Total	$ 22,050	$ 32,050
Average Balance	$ 29,801	$ 39,896