Accumulated Other Comprehensive Loss ("AOCL") (Components of Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Net unrealized gains (losses), before tax	$ 2,115	$ (3,950)
Income tax (expense)/benefit related to other comprehensive income	(566)	1,058
Other comprehensive loss, net of tax	1,549	(2,892)
Accumulated Other Comprehensive Loss, Net of Tax [Member]
Unrealized net gains (losses), net of tax	409	(4,052)
Recognized gains (losses), net of tax	(1,140)	(1,160)
Other comprehensive loss, net of tax	1,549	(2,892)
Investment securities- with OTTI [Member]
Unrealized net gains (losses), before tax	3,379	(803)
Recognized gains (losses), before tax	201	202
Net unrealized gains (losses), before tax	3,178	(1,005)
Unrealized tax (expense) benefit	(904)	216
Income tax (expense)/benefit related to other comprehensive income	(850)	270
Unrealized net gains (losses), net of tax	2,475	(587)
Recognized gains (losses), net of tax	147	148
Other comprehensive loss, net of tax	2,328	(735)
Investment securities- with OTTI [Member] | Accretable Yield in Income [Member]
Recognized gains (losses), before tax	201	202
Recognized tax (expense) benefit	(54)	(54)
Recognized gains (losses), net of tax	147	148
Investment securities- all other [Member]
Unrealized net gains (losses), before tax	(7,661)	1,765
Recognized gains (losses), before tax	154	632
Net unrealized gains (losses), before tax	(7,815)	1,133
Unrealized tax (expense) benefit	2,050	(474)
Income tax (expense)/benefit related to other comprehensive income	2,091	(305)
Unrealized net gains (losses), net of tax	(5,611)	1,291
Recognized gains (losses), net of tax	113	463
Other comprehensive loss, net of tax	(5,724)	828
Investment securities- all other [Member] | Recognition of Gains (Losses) In Income [Member]
Recognized gains (losses), before tax	154	632
Recognized tax (expense) benefit	(41)	(169)
Recognized gains (losses), net of tax	113	463
Investment Securities HTM [Member]
Recognized gains (losses), before tax	(247)	(798)
Net unrealized gains (losses), before tax	247	798
Income tax (expense)/benefit related to other comprehensive income	(66)	(214)
Recognized gains (losses), net of tax	(181)	(584)
Other comprehensive loss, net of tax	181	584
Investment Securities HTM [Member] | Amortization of Recognized Income [Member]
Recognized gains (losses), before tax	(247)	(798)
Recognized tax (expense) benefit	66	214
Recognized gains (losses), net of tax	(181)	(584)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Unrealized net gains (losses), before tax	867	(1,187)
Net unrealized gains (losses), before tax	867	(1,187)
Unrealized tax (expense) benefit	(232)	318
Income tax (expense)/benefit related to other comprehensive income	(232)	318
Unrealized net gains (losses), net of tax	635	(869)
Other comprehensive loss, net of tax	635	(869)
Pension Plan [Member]
Unrealized net gains (losses), before tax	4,684	(4,456)
Recognized gains (losses), before tax	(1,490)	(1,433)
Net unrealized gains (losses), before tax	6,174	(3,023)
Pension Plan [Member] | Pension [Member]
Unrealized net gains (losses), before tax	4,684	(4,456)
Net unrealized gains (losses), before tax	6,174	(3,023)
Unrealized tax (expense) benefit	(1,253)	1,194
Income tax (expense)/benefit related to other comprehensive income	(1,652)	810
Unrealized net gains (losses), net of tax	3,431	(3,262)
Recognized gains (losses), net of tax	(1,091)	(1,049)
Other comprehensive loss, net of tax	4,522	(2,213)
Pension Plan [Member] | SERP [Member]
Unrealized net gains (losses), before tax	(711)	(854)
Net unrealized gains (losses), before tax	(536)	666
Unrealized tax (expense) benefit	190	229
Income tax (expense)/benefit related to other comprehensive income	143	179
Unrealized net gains (losses), net of tax	(521)	(625)
Recognized gains (losses), net of tax	(128)	(138)
Other comprehensive loss, net of tax	(393)	(487)
Pension Plan [Member] | Amortization of Unrecognized Loss [Member] | Pension [Member]
Recognized gains (losses), before tax	(1,490)	(1,433)
Recognized tax (expense) benefit	399	384
Recognized gains (losses), net of tax	(1,091)	(1,049)
Pension Plan [Member] | Amortization of Unrecognized Loss [Member] | SERP [Member]
Recognized gains (losses), before tax	(175)	(188)
Recognized tax (expense) benefit	47	50
Recognized gains (losses), net of tax	$ (128)	$ (138)