Consolidated Statements of Comprehensive Loss Parentheticals - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Consolidated Statements of Operations [Abstract]
Stock-based compensation expense associated with research and development expense	$ 939	$ 1,138	$ 3,069	$ 3,608
Stock-based compensation expense associated with selling, general and administrative expense	$ 1,709	$ 1,574	$ 5,183	$ 4,741