Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Net loss	$ (9,388)	$ (5,726)	$ (25,806)	$ (14,574)
Comprehensive loss	$ (9,388)	$ (5,726)	$ (25,806)	$ (14,574)