Changes in Accumulated Other Comprehensive (Loss) Income Balances (Schedule of Accumulated Other Comprehensive (Loss) Income ) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ (1,035)
Other comprehensive (loss) income:
Change in net actuarial gain	27	$ 43
Tax effect on change in net actuarial gain	(6)	(9)
Unrealized holding gains arising during the period	(3,081)	585
Tax effect on unrealized holding losses arising during the period	647	(123)
Reclassification adjustment for gains included in net income	(146)	(1,403)
Tax effect on reclassification adjustment for gains included in income tax expense	31	295
Other comprehensive loss, net of tax	(2,528)	(612)
Ending Balance	(3,563)
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	27	43
Tax effect on change in net actuarial gain	(6)	(9)
Unrealized holding gains arising during the period	0	0
Tax effect on unrealized holding losses 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 expense	0	0
Other comprehensive loss, net of tax	21	34
Ending Balance	(2,620)	(3,728)
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	(3,081)	585
Tax effect on unrealized holding losses arising during the period	647	(123)
Reclassification adjustment for gains included in net income	(146)	(1,403)
Tax effect on reclassification adjustment for gains included in income tax expense	31	295
Other comprehensive loss, net of tax	(2,549)	(646)
Ending Balance	(943)	3,499
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	27	43
Tax effect on change in net actuarial gain	(6)	(9)
Unrealized holding gains arising during the period	(3,081)	585
Tax effect on unrealized holding losses arising during the period	647	(123)
Reclassification adjustment for gains included in net income	(146)	(1,403)
Tax effect on reclassification adjustment for gains included in income tax expense	31	295
Other comprehensive loss, net of tax	(2,528)	(612)
Ending Balance	$ (3,563)	$ (229)