Accumulated Other Comprehensive Loss (Schedule of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Balance	$ 165,481	$ 161,873	$ 152,868	$ 151,793	$ 161,873	$ 151,793
Balance	164,177	165,481	155,156	152,868	164,177	155,156
Investment securities- with OTTI [Member]
Balance	(2,364)	(2,482)	(2,928)	(1,711)	(2,482)	(1,711)
Other comprehensive income/(loss) before reclassifications	(620)	155	111	(1,180)	(465)	(1,069)
Amounts reclassified from accumulated other comprehensive loss	(40)	(37)	(40)	(37)
Balance	(3,024)	(2,364)	(2,857)	(2,928)	(3,024)	(2,857)
Investment securities- all other [Member]
Other comprehensive income/(loss) before reclassifications	(528)					(669)
Investment securities- all other - excluding transfers [Member]
Balance	(13,676)	(13,217)	(15,395)	(16,380)	(13,217)	(16,380)
Other comprehensive income/(loss) before reclassifications	(528)	(459)	(1,654)	985
Balance	(14,204)	(13,676)	(17,049)	(15,395)	(14,204)	(17,049)
Investment Securities HTM [Member]
Balance	(5,083)	(5,201)	(5,570)	(5,703)	(5,201)	(5,703)
Amounts reclassified from accumulated other comprehensive loss	118	118	129	133
Balance	(4,965)	(5,083)	(5,441)	(5,570)	(4,965)	(5,441)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	623	569	659	797	569	797
Other comprehensive income/(loss) before reclassifications	(51)	54	150	(138)
Balance	572	623	809	659	572	809
Adjustment [Member] | Pension [Member]
Balance	(13,018)	(14,263)	(16,296)	(16,603)	(14,263)	(16,603)
Other comprehensive income/(loss) before reclassifications	(396)	1,096	(42)	123	700	81
Amounts reclassified from accumulated other comprehensive loss	150	149	195	184
Balance	(13,264)	(13,018)	(16,143)	(16,296)	(13,264)	(16,143)
Adjustment [Member] | SERP [Member]
Balance	(1,204)	(1,233)	573	574	(1,233)	574
Amounts reclassified from accumulated other comprehensive loss	29	29	(2)	(1)
Balance	(1,175)	(1,204)	571	573	(1,175)	571
Accumulated Other Comprehensive Loss [Member]
Balance	(34,722)	(35,827)	(38,957)	(39,026)	(35,827)	(39,026)
Other comprehensive income/(loss) before reclassifications	(1,595)	846	(1,435)	(210)
Amounts reclassified from accumulated other comprehensive loss	257	259	282	279
Balance	$ (36,060)	$ (34,722)	$ (40,110)	$ (38,957)	$ (36,060)	$ (40,110)