Accumulated Other Comprehensive Loss ("AOCL") (Components of Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Net unrealized gains (losses), before tax	$ (15,935)	$ 2,115
Income tax expense related to other comprehensive income	4,223	(566)
Other comprehensive (loss)/income, net of tax	(11,712)	1,549
Accumulated Other Comprehensive Loss, Net of Tax [Member]
Unrealized net gains (losses), net of tax	(13,133)	409
Recognized gains (losses), net of tax	(1,421)	(1,140)
Other comprehensive (loss)/income, net of tax	(11,712)	1,549
Investment securities- with OTTI [Member]
Unrealized holding (losses)/gains on investments	(835)	3,379
Recognized gains (losses), before tax	202	201
Net unrealized gains (losses), before tax	(1,037)	3,178
Unrealized tax (expense) benefit	221	(904)
Income tax expense related to other comprehensive income	275	(850)
Unrealized net gains (losses), net of tax	(614)	2,475
Recognized gains (losses), net of tax	148	147
Other comprehensive (loss)/income, net of tax	(762)	2,328
Investment securities- with OTTI [Member] | Accretable Yield in Income [Member]
Recognized gains (losses), before tax	202	201
Recognized tax (expense) benefit	(54)	(54)
Recognized gains (losses), net of tax	148	147
Investment securities- all other [Member]
Unrealized holding (losses)/gains on investments	(22,792)	(7,661)
Recognized gains (losses), before tax	3	154
Net unrealized gains (losses), before tax	(14,467)	(7,815)
Unrealized tax (expense) benefit	6,043	2,050
Income tax expense related to other comprehensive income	3,836	2,091
Unrealized net gains (losses), net of tax	(16,749)	(5,611)
Other comprehensive (loss)/income, net of tax	(10,631)	(5,724)
Investment securities- all other [Member] | Recognition of Gains (Losses) In Income [Member]
Recognized gains (losses), before tax	3	154
Recognized tax (expense) benefit	(1)	(41)
Recognized gains (losses), net of tax	2	113
Investment Securities HTM [Member]
Recognized gains (losses), before tax	(841)	(247)
Net unrealized gains (losses), before tax	(7,578)	247
Income tax expense related to other comprehensive income	2,009	(66)
Unrealized net gains (losses), net of tax	(6,120)
Recognized gains (losses), net of tax	(551)	(181)
Other comprehensive (loss)/income, net of tax	(5,569)	181
Investment Securities HTM [Member] | Recognition of Gains (Losses) In Income [Member]
Recognized gains (losses), before tax	91
Recognized tax (expense) benefit	(24)
Recognized gains (losses), net of tax	67
Investment Securities HTM [Member] | Amortization of Recognized Income [Member]
Recognized gains (losses), before tax	(841)	(247)
Recognized tax (expense) benefit	223	66
Recognized gains (losses), net of tax	(618)	(181)
Investment Securities Transferred From AFS to HTM
Unrealized holding (losses)/gains on investments	(8,328)
Unrealized tax (expense) benefit	2,208
Unrealized net gains (losses), net of tax	(6,120)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Unrealized holding (losses)/gains on investments	1,521	867
Net unrealized gains (losses), before tax	1,521	867
Unrealized tax (expense) benefit	(405)	(232)
Income tax expense related to other comprehensive income	(405)	(232)
Unrealized net gains (losses), net of tax	1,116	635
Other comprehensive (loss)/income, net of tax	1,116	635
Pension Plan [Member]
Unrealized holding (losses)/gains on investments	931	4,684
Recognized gains (losses), before tax	(1,117)	(1,490)
Net unrealized gains (losses), before tax	2,048	6,174
Pension Plan [Member] | Pension [Member]
Unrealized holding (losses)/gains on investments	931	4,684
Net unrealized gains (losses), before tax	2,048	6,174
Unrealized tax (expense) benefit	(247)	(1,253)
Income tax expense related to other comprehensive income	(543)	(1,652)
Unrealized net gains (losses), net of tax	684	3,431
Recognized gains (losses), net of tax	(821)	(1,091)
Other comprehensive (loss)/income, net of tax	1,505	4,522
Pension Plan [Member] | SERP [Member]
Unrealized holding (losses)/gains on investments	3,307	(711)
Net unrealized gains (losses), before tax	3,578	(536)
Unrealized tax (expense) benefit	(877)	190
Income tax expense related to other comprehensive income	(949)	143
Unrealized net gains (losses), net of tax	2,430	(521)
Recognized gains (losses), net of tax	(199)	(128)
Other comprehensive (loss)/income, net of tax	2,629	(393)
Pension Plan [Member] | Amortization of Unrecognized Loss [Member] | Pension [Member]
Recognized gains (losses), before tax	(1,117)	(1,490)
Recognized tax (expense) benefit	296	399
Recognized gains (losses), net of tax	(821)	(1,091)
Pension Plan [Member] | Amortization of Unrecognized Loss [Member] | SERP [Member]
Recognized gains (losses), before tax	(271)	(175)
Recognized tax (expense) benefit	72	47
Recognized gains (losses), net of tax	$ (199)	$ (128)