Changes in Accumulated Other Comprehensive Income Balances (Schedule of Accumulated Other Comprehensive (Loss) Income ) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 383
Other comprehensive (loss) income:
Change in net actuarial gain	1,419	$ (662)
Tax effect on change in net actuarial (loss) gain	(298)	139
Unrealized holding gains arising during the period	2,832	709
Tax effect on unrealized holding gains arising during the period	(595)	(149)
Reclassification adjustment for gains included in net income	(6,046)	(433)
Tax effect on reclassification adjustment for gains included in income tax expense	1,270	91
Other comprehensive loss, net of tax	(1,418)	(305)
Ending Balance	(1,035)	383
Pension Liability [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(3,762)	(3,239)
Other comprehensive (loss) income:
Change in net actuarial gain	1,419	(662)
Tax effect on change in net actuarial (loss) gain	(298)	139
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 expense	0	0
Other comprehensive loss, net of tax	1,121	(523)
Ending Balance	(2,641)	(3,762)
Unrealized Gains (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	4,145	3,927
Other comprehensive (loss) income:
Change in net actuarial gain	0	0
Tax effect on change in net actuarial (loss) gain	0	0
Unrealized holding gains arising during the period	2,832	709
Tax effect on unrealized holding gains arising during the period	(595)	(149)
Reclassification adjustment for gains included in net income	(6,046)	(433)
Tax effect on reclassification adjustment for gains included in income tax expense	1,270	91
Other comprehensive loss, net of tax	(2,539)	218
Ending Balance	1,606	4,145
Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	383	688
Other comprehensive (loss) income:
Change in net actuarial gain	1,419	(662)
Tax effect on change in net actuarial (loss) gain	(298)	139
Unrealized holding gains arising during the period	2,832	709
Tax effect on unrealized holding gains arising during the period	(595)	(149)
Reclassification adjustment for gains included in net income	(6,046)	(433)
Tax effect on reclassification adjustment for gains included in income tax expense	1,270	91
Other comprehensive loss, net of tax	(1,418)	(305)
Ending Balance	$ (1,035)	$ 383