Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net income	$ 9,814	$ 11,213	$ 21,596	$ 20,728
Other comprehensive income (loss), before tax
Change in net unrealized (losses) gains on debt securities	(1,593)	(6,550)	1,570	(12,447)
Reclassification adjustment for losses recognized in net income	28	0	21	0
Net unrealized (losses) gains on available-for-sale debt securities	(1,565)	(6,550)	1,591	(12,447)
Employee benefit plans:
Net actuarial loss	(31)	(1)	(63)	(423)
Reclassification adjustment for amortization of prior service cost and net actuarial loss recognized in net income	31	33	63	67
Net unrealized gains (losses) on employee benefit plans	0	32	0	(356)
Other comprehensive (loss) income, before tax	(1,565)	(6,518)	1,591	(12,803)
Income tax (benefit) expense	(329)	(1,370)	333	(2,689)
Other comprehensive (loss) income, net of tax	(1,236)	(5,148)	1,258	(10,114)
Total comprehensive income	$ 8,578	$ 6,065	$ 22,854	$ 10,614