Condensed Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Stockholders' Equity, beginning balances at Dec. 31, 2020	$ 256,387	$ 3	$ 392,063		$ (135,679)
Stockholders' Equity, beginning balances (in shares) at Dec. 31, 2020		26,681,983
Issuance of common stock upon exercise of stock options	99		99
Issuance of common stock upon exercise of stock options (in shares)		12,396
Stock-based compensation expense	2,329		2,329
Vesting of common stock warrants issued for services	22		22
Net loss	(16,406)				(16,406)
Stockholders' Equity, ending balances at Mar. 31, 2021	242,431	$ 3	394,513		(152,085)
Stockholders' Equity, ending balances (in shares) at Mar. 31, 2021		26,694,379
Stockholders' Equity, beginning balances at Dec. 31, 2020	256,387	$ 3	392,063		(135,679)
Stockholders' Equity, beginning balances (in shares) at Dec. 31, 2020		26,681,983
Net loss	(23,995)
Stockholders' Equity, ending balances at Jun. 30, 2021	240,646	$ 3	400,317		(159,674)
Stockholders' Equity, ending balances (in shares) at Jun. 30, 2021		26,891,857
Stockholders' Equity, beginning balances at Mar. 31, 2021	242,431	$ 3	394,513		(152,085)
Stockholders' Equity, beginning balances (in shares) at Mar. 31, 2021		26,694,379
Issuance of common stock upon exercise of stock options and warrants	820		820
Issuance of common stock upon exercise of stock options and warrants (in shares)		197,478
Stock-based compensation expense	3,816		3,816
Issuance of common stock warrant	1,146		1,146
Vesting of common stock warrants issued for services	22		22
Net loss	(7,589)				(7,589)
Stockholders' Equity, ending balances at Jun. 30, 2021	240,646	$ 3	400,317		(159,674)
Stockholders' Equity, ending balances (in shares) at Jun. 30, 2021		26,891,857
Stockholders' Equity, beginning balances at Dec. 31, 2021	319,107	$ 3	526,523	$ (423)	(206,996)
Stockholders' Equity, beginning balances (in shares) at Dec. 31, 2021		32,224,524
Issuance of common stock upon exercise of stock options	330		330
Issuance of common stock upon exercise of stock options (in shares)		39,541
Stock-based compensation expense	3,933		3,933
Vesting of common stock warrants issued for services	22		22
Net unrealized loss on marketable securities	(998)			(998)
Net loss	(26,338)				(26,338)
Stockholders' Equity, ending balances at Mar. 31, 2022	296,056	$ 3	530,808	(1,421)	(233,334)
Stockholders' Equity, ending balances (in shares) at Mar. 31, 2022		32,264,065
Stockholders' Equity, beginning balances at Dec. 31, 2021	$ 319,107	$ 3	526,523	(423)	(206,996)
Stockholders' Equity, beginning balances (in shares) at Dec. 31, 2021		32,224,524
Issuance of common stock upon exercise of stock options (in shares)	90,802
Net loss	$ (54,424)
Stockholders' Equity, ending balances at Jun. 30, 2022	272,517	$ 3	535,761	(1,827)	(261,420)
Stockholders' Equity, ending balances (in shares) at Jun. 30, 2022		32,376,878
Stockholders' Equity, beginning balances at Mar. 31, 2022	296,056	$ 3	530,808	(1,421)	(233,334)
Stockholders' Equity, beginning balances (in shares) at Mar. 31, 2022		32,264,065
Issuance of common stock upon exercise of stock options	138		138
Issuance of common stock upon exercise of stock options (in shares)		51,261
Stock-based compensation expense	4,322		4,322
Issuance of common stock - 2020 ESPP	471		471
Issuance of common stock - 2020 ESPP (in shares)		61,552
Vesting of common stock warrants issued for services	22		22
Net unrealized loss on marketable securities	(406)			(406)
Net loss	(28,086)				(28,086)
Stockholders' Equity, ending balances at Jun. 30, 2022	$ 272,517	$ 3	$ 535,761	$ (1,827)	$ (261,420)
Stockholders' Equity, ending balances (in shares) at Jun. 30, 2022		32,376,878