Government Funding (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Jul. 28, 2020	Jun. 30, 2020	Jun. 11, 2020
Government Funding [Abstract]
Amount awarded			$ 33,600		$ 5,500
Government funding, term of contract		33 months
Amount invoiced				$ 2,400
Deferred income related to certain overhead expenses, not capitalized	$ 19	$ 21