Revenue Recognition (Summary Of Revenue Performance Obligations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Performance Obligations
Revenues	$ 24,246	$ 17,732
Percent of Revenues	100.00%	100.00%
Revenue recognized over time
Performance Obligations
Revenues	$ 842	$ 403
Percent of Revenues	3.50%	2.30%
Revenue recognized at a point in time
Performance Obligations
Revenues	$ 23,404	$ 17,329
Percent of Revenues	96.50%	97.70%