Condensed Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Unaudited) - USD ($)	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Convertible Preferred Stock	Series 1 Convertible Preferred Stock
Balance at Dec. 31, 2019	$ (21,140,000)		$ 60,636,000	$ (81,776,000)
Temporary Equity Balance, Shares at Dec. 31, 2019					37,871,430
Temporary Equity Balance at Dec. 31, 2019					$ 42,755,000
Balance, Shares at Dec. 31, 2019		2,115,583
Issuance of Common Stock upon exercise of stock options	5,000		5,000
Issuance of Common Stock upon exercise of stock options, Shares		483
Stock-based compensation expense	681,000		681,000
Net loss	(7,374,000)			(7,374,000)
Balance at Mar. 31, 2020	(27,828,000)		61,322,000	(89,150,000)
Temporary Equity Balance, Shares at Mar. 31, 2020					37,871,430
Temporary Equity Balance at Mar. 31, 2020					$ 42,755,000
Balance, Shares at Mar. 31, 2020		2,116,066
Balance at Dec. 31, 2020	$ (108,571,000)		64,335,000	(172,906,000)
Temporary Equity Balance, Shares at Dec. 31, 2020	53,509,351				53,509,351
Temporary Equity Balance at Dec. 31, 2020	$ 290,945,000				$ 290,945,000
Balance, Shares at Dec. 31, 2020	2,126,254	2,126,254
Issuance of Common Stock upon exercise of stock options	$ 131,000		131,000
Issuance of Common Stock upon exercise of stock options, Shares	85,895	85,895
Issuance of Common Stock upon initial public offering, net of issuance costs of $21,349	$ 232,548,000	$ 2,000	232,546,000
Issuance of Common Stock upon initial public offering, net of issuance costs, Shares		15,870,000
Conversion of convertible preferred stock into common stock and Series 1 convertible preferred stock upon initial public offering	290,945,000		290,942,000		$ (290,945,000)	$ 3,000
Temporary Equity, Conversion of convertible preferred stock into common stock and Series 1 convertible preferred stock upon initial public offering, Shares		7,555,432			(53,509,351)	29,863,674
Stock-based compensation expense	1,772,000		1,772,000
Net loss	(60,492,000)			(60,492,000)
Balance at Mar. 31, 2021	$ 356,333,000	$ 2,000	$ 589,726,000	$ (233,398,000)		$ 3,000
Temporary Equity Balance, Shares at Mar. 31, 2021					0
Balance, Shares at Mar. 31, 2021	25,637,581	25,637,581				29,863,674