Revenues and Trade Receivables, Net, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Revenues by Geographic Market [Abstract]
Revenues	$ 7,149	$ 8,260	$ 21,675	$ 8,765	$ 16,419	$ 12,418	$ 11,129	$ 12,643	$ 45,849	$ 52,609
United States [Member]
Revenues by Geographic Market [Abstract]
Revenues									40,956	48,293
Ex-United States [Member]
Revenues by Geographic Market [Abstract]
Revenues									$ 4,893	$ 4,316