Accumulated Other Comprehensive Loss (Components of Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Net unrealized gains (losses), before tax	$ 4,345	$ (15,935)
Income tax (credit)/expense related to other comprehensive income	(1,146)	4,223
Other comprehensive income/(loss), net of tax	3,199	(11,712)
Accumulated Other Comprehensive Loss [Member]
Unrealized net gains (losses), net of tax	(986)	(13,133)
Recognized gains (losses), net of tax	(4,185)	(1,421)
Other comprehensive income/(loss), net of tax	3,199	(11,712)
Investment securities- with OTTI [Member]
Unrealized holding (losses)/gains on investments	(845)	(835)
Recognized gains (losses), before tax	202	202
Net unrealized gains (losses), before tax	(1,047)	(1,037)
Unrealized tax (expense) benefit	223	221
Income tax (credit)/expense related to other comprehensive income	276	275
Unrealized net gains (losses), net of tax	(622)	(614)
Recognized gains (losses), net of tax	149	148
Other comprehensive income/(loss), net of tax	(771)	(762)
Investment securities- with OTTI [Member] | Accretable Yield in Income [Member]
Recognized gains (losses), before tax	202	202
Recognized tax (expense) benefit	(53)	(54)
Recognized gains (losses), net of tax	149	148
Investment securities- all other [Member]
Unrealized holding (losses)/gains on investments	83	(22,792)
Recognized gains (losses), before tax	(4,214)	3
Net unrealized gains (losses), before tax	4,297	(14,467)
Unrealized tax (expense) benefit	(22)	6,043
Income tax (credit)/expense related to other comprehensive income	(1,134)	3,836
Unrealized net gains (losses), net of tax	61	(16,749)
Other comprehensive income/(loss), net of tax	3,163	(10,631)
Investment securities- all other [Member] | Recognition of Gains (Losses) In Income [Member]
Recognized gains (losses), before tax	(4,214)	3
Recognized tax (expense) benefit	1,112	(1)
Recognized gains (losses), net of tax	(3,102)	2
Investment Securities HTM [Member]
Unrealized holding (losses)/gains on investments		(8,328)
Recognized gains (losses), before tax	(682)	(841)
Net unrealized gains (losses), before tax	682	(7,578)
Unrealized tax (expense) benefit		2,208
Income tax (credit)/expense related to other comprehensive income	(180)	2,009
Unrealized net gains (losses), net of tax		(6,120)
Recognized gains (losses), net of tax	(502)	(551)
Other comprehensive income/(loss), net of tax	502	(5,569)
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	(682)	(841)
Recognized tax (expense) benefit	180	223
Recognized gains (losses), net of tax	(502)	(618)
Investment Securities Transferred From AFS to HTM
Unrealized holding (losses)/gains on investments		8,328
Recognized tax (expense) benefit		(2,208)
Recognized gains (losses), net of tax		6,120
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Unrealized holding (losses)/gains on investments	(310)	1,521
Net unrealized gains (losses), before tax	(310)	1,521
Unrealized tax (expense) benefit	82	(405)
Income tax (credit)/expense related to other comprehensive income	82	(405)
Unrealized net gains (losses), net of tax	(228)	1,116
Other comprehensive income/(loss), net of tax	(228)	1,116
Adjustment [Member]
Unrealized holding (losses)/gains on investments	2,180	931
Recognized gains (losses), before tax	(998)	(1,117)
Net unrealized gains (losses), before tax	3,178	2,048
Adjustment [Member] | Pension [Member]
Unrealized holding (losses)/gains on investments	2,180	931
Net unrealized gains (losses), before tax	3,178	2,048
Unrealized tax (expense) benefit	(575)	(247)
Income tax (credit)/expense related to other comprehensive income	(838)	(543)
Unrealized net gains (losses), net of tax	1,605	684
Recognized gains (losses), net of tax	(735)	(821)
Other comprehensive income/(loss), net of tax	2,340	1,505
Adjustment [Member] | SERP [Member]
Unrealized holding (losses)/gains on investments	(2,448)	3,307
Recognized gains (losses), before tax		3,578
Net unrealized gains (losses), before tax	(2,455)
Unrealized tax (expense) benefit	646	(877)
Recognized tax (expense) benefit		(949)
Income tax (credit)/expense related to other comprehensive income	648
Unrealized net gains (losses), net of tax	(1,802)	2,430
Recognized gains (losses), net of tax	5	(199)
Other comprehensive income/(loss), net of tax	(1,807)	2,629
Adjustment [Member] | Amortization of Unrecognized Loss [Member] | Pension [Member]
Recognized gains (losses), before tax	(998)	(1,117)
Recognized tax (expense) benefit	263	296
Recognized gains (losses), net of tax	(735)	(821)
Adjustment [Member] | Amortization of Unrecognized Loss [Member] | SERP [Member]
Recognized gains (losses), before tax	7	(271)
Recognized tax (expense) benefit	(2)	72
Recognized gains (losses), net of tax	$ 5	$ (199)