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Accumulated Other Comprehensive Loss (Schedule of Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - Pension Benefits [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-Tax	$ 6,241	$ (983)
After-Tax	6,241	(983)
Accumulated Defined Benefit Plans Adjustment, Actuarial Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-Tax	5,620	(1,544)
After-Tax	5,620	(1,544)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Pre-Tax	621	561
After-Tax	$ 621	$ 561

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Amount before tax of reclassification adjustments of other comprehensive income (loss).

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