Consolidated Statements of Comprehensive (Loss) Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 4,927	$ 5,796	$ 16,025	$ 16,527
Investment securities available-for-sale:
Change in unrealized losses on investment securities available-for-sale, net of tax	(12,430)	(2,192)	(43,438)	(3,222)
Adjustment for gains on sale of investment securities, net of tax	0	(93)	0	(95)
Defined benefit pension plans:
Amortization of prior service cost included in net periodic pension cost, net of tax	0	72	0	217
Total other comprehensive loss	(12,430)	(2,213)	(43,438)	(3,100)
Total comprehensive (loss) income	$ (7,503)	$ 3,583	$ (27,413)	$ 13,427