Short-term borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Short-term borrowings
Ending Balance	$ 17,590	$ 114,930
Average Balance	38,331	42,680
Maximum Month-End Balance	$ 186,470	$ 142,075
Weighted Average Rate for the Year	5.01%	2.58%
Weighted Average Rate at End of Year	5.35%	4.43%
Other borrowings
Short-term borrowings
Ending Balance	$ 17,590	$ 14,530
Average Balance	19,160	10,033
Maximum Month-End Balance	$ 28,470	$ 16,100
Weighted Average Rate for the Year	5.54%	2.10%
Weighted Average Rate at End of Year	5.35%	4.33%
FHLB Advances
Short-term borrowings
Ending Balance		$ 100,400
Average Balance	$ 19,171	32,647	$ 13,973
Maximum Month-End Balance	$ 158,000	$ 125,975	$ 50,000
Weighted Average Rate for the Year	4.48%	2.73%	0.56%
Weighted Average Rate at End of Year		4.45%