Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net Income	$ 11,974	$ 13,279	$ 24,549	$ 26,559
Other Comprehensive (Loss) Income, Net of Tax:
Net Unrealized Securities Holding Loss Arising During the Period	(9,711)	1,122	(32,007)	(2,690)
Net Unrealized Gain on Cash Flow Hedge Agreements	878	(704)	2,003	771
Reclassification of Net Unrealized Gain on Cash Flow Hedge Agreements to Interest Expense	8	(23)	(13)	(43)
Amortization of Net Retirement Plan Actuarial Loss	(21)	0	21	34
Amortization of Net Retirement Plan Prior Service Cost	79	43	85	86
Other Comprehensive (Loss) Income	(8,767)	438	(29,911)	(1,842)
Comprehensive Income (Loss)	$ 3,207	$ 13,717	$ (5,362)	$ 24,717