Note 10 - Short-term Borrowings - Short-term Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Customer repurchase agreements	$ 370	$ 41,128
Customer repurchase agreements, weighted average rate	0.10%	0.03%
FHLB borrowings, amount	$ 100,531	$ 0
FHLB borrowings, weighted average rate	4.42%	0.00%
Total short-term borrowings, amount	$ 100,901	$ 41,128
Total short-term borrowings, weighted average rate	4.40%	0.03%