Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income	$ 8,562	$ 12,575
Other Comprehensive Income (Loss), Net of Tax:
Net Unrealized Securities Holding Gain (Loss) Arising During the Period	6,099	(22,296)
Net Unrealized (Loss) Gain on Cash Flow Hedge Agreements	(593)	1,125
Reclassification of Net Unrealized Loss (Gain) on Cash Flow Hedge Agreements to Interest Expense	147	(21)
Amortization of Net Retirement Plan Actuarial (Gain) Loss	(18)	42
Amortization of Net Retirement Plan Prior Service Cost	37	6
Other Comprehensive Income (Loss)	5,672	(21,144)
Comprehensive Income (Loss)	$ 14,234	$ (8,569)