Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating expense:
Research & development	$ 7,040	$ 3,065
General & administrative	6,540	7,095
Total operating expenses	13,580	10,160
Operating loss	(13,580)	(10,160)
Other income, net
Interest income, net	(115)	(100)
Total other income, net	(115)	(100)
Net loss	(13,465)	(10,060)
Other comprehensive loss:
Unrealized losses on available-for-sale marketable debt securities	(164)
Total other comprehensive loss	(164)
Comprehensive Loss	$ (13,629)	$ (10,060)
Weighted Average Shares Outstanding, basic and diluted (in Shares)	11,226,929	5,560,507
Net loss per share, basic and diluted (in Dollars per share)	$ (1.20)	$ (1.81)