Consolidated Statements Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Consolidated Statements Comprehensive Loss
Net loss	$ (37,300)	$ (26,293)
Other comprehensive income:
Gain on short-term investments		4
Total other comprehensive income:		4
Comprehensive loss	$ (37,300)	$ (26,289)