Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Consolidated Statements of Comprehensive Income (Loss)
Net Income (Loss)	$ 7,591	$ 4,455	$ 19,887	$ 18,839
Available-for-sale debt securities:
Unrealized holding losses on available-for-sale debt securities	(14,865)	(25,880)	(12,535)	(77,923)
Reclassification adjustment for gains realized in income	0	(20)	(6)	(21)
Other comprehensive loss on available-for-sale debt securities	(14,865)	(25,900)	(12,541)	(77,944)
Unfunded pension and postretirement obligations:
Changes from plan amendments and actuarial gains and losses	0	0	(8)	133
Amortization of prior service cost and net actuarial loss included in net periodic benefit cost	(14)	(9)	(42)	(31)
Other comprehensive (loss) income on pension and postretirement obligations	(14)	(9)	(50)	102
Other comprehensive loss before income tax	(14,879)	(25,909)	(12,591)	(77,842)
Income tax related to other comprehensive loss	3,126	5,442	2,643	16,347
Net other comprehensive loss	(11,753)	(20,467)	(9,948)	(61,495)
Comprehensive (loss) income	$ (4,162)	$ (16,012)	$ 9,939	$ (42,656)