Changes in Accumulated Other Comprehensive (Loss) Income Balances (Schedule of Accumulated Other Comprehensive (Loss) Income ) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ (1,035)
Other comprehensive (loss) income:
Change in net actuarial gain	$ 27	$ 44	54	$ 87
Tax effect on change in net actuarial gain	(6)	(9)	(12)	(18)
Unrealized holding gains arising during the period	(4,605)	2,202	(7,686)	2,787
Tax effect on unrealized holding gains arising during the period	967	(462)	1,614	(585)
Reclassification adjustment for gains included in net income	(1,017)	(2,826)	(1,163)	(4,229)
Tax effect on reclassification adjustment for gains included in income tax income	213	593	244	888
Other comprehensive loss, net of tax	(4,421)	(458)	(6,949)	(1,070)
Ending Balance	(7,984)		(7,984)
Pension Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(2,641)	(3,762)
Other comprehensive (loss) income:
Change in net actuarial gain			54	87
Tax effect on change in net actuarial gain			(12)	(18)
Unrealized holding gains arising during the period			0	0
Tax effect on unrealized holding gains arising during the period			0	0
Reclassification adjustment for gains included in net income			0	0
Tax effect on reclassification adjustment for gains included in income tax income			0	0
Other comprehensive loss, net of tax			42	69
Ending Balance	(2,599)	(3,693)	(2,599)	(3,693)
Unrealized Gains (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			1,606	4,145
Other comprehensive (loss) income:
Change in net actuarial gain			0	0
Tax effect on change in net actuarial gain			0	0
Unrealized holding gains arising during the period			(7,686)	2,787
Tax effect on unrealized holding gains arising during the period			1,614	(585)
Reclassification adjustment for gains included in net income			(1,163)	(4,229)
Tax effect on reclassification adjustment for gains included in income tax income			244	888
Other comprehensive loss, net of tax			(6,991)	(1,139)
Ending Balance	(5,385)	3,006	(5,385)	3,006
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(1,035)	383
Other comprehensive (loss) income:
Change in net actuarial gain			54	87
Tax effect on change in net actuarial gain			(12)	(18)
Unrealized holding gains arising during the period			(7,686)	2,787
Tax effect on unrealized holding gains arising during the period			1,614	(585)
Reclassification adjustment for gains included in net income			(1,163)	(4,229)
Tax effect on reclassification adjustment for gains included in income tax income			244	888
Other comprehensive loss, net of tax			(6,949)	(1,070)
Ending Balance	$ (7,984)	$ (687)	$ (7,984)	$ (687)