Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating expense:
Research & development	$ 4,093	$ 2,796	$ 17,020	$ 8,330
General & administrative	6,737	5,266	20,182	17,157
Total operating expenses	10,830	8,062	37,202	25,487
Operating loss	(10,830)	(8,062)	(37,202)	(25,487)
Other income, net
Interest income, net	(53)	(92)	(178)	(317)
Total other income, net	(53)	(92)	(178)	(317)
Net loss	(10,777)	(7,970)	(37,024)	(25,170)
Other comprehensive gain (loss):
Unrealized gains (losses) on available-for-sale marketable debt securities	62		(39)
Total other comprehensive gain (loss)	62		(39)
Comprehensive Loss	$ (10,715)	$ (7,970)	$ (37,063)	$ (25,170)
Weighted Average Shares Outstanding, basic and diluted (in Shares)	11,235,507	6,324,295	11,231,513	5,910,849
Net loss per share, basic and diluted (in Dollars per share)	$ (0.96)	$ (1.26)	$ (3.3)	$ (4.26)