Debt (Schedule of Cash Paid for Interest) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Long-term Debt, Unclassified [Abstract]
Interest expense, net	$ (1,639)	$ (703)	$ (2,323)
Interest income	269	276	764
Other non-cash adjustments	(345)	(345)	(380)
Cash paid for interest	$ 1,563	$ 634	$ 2,707