CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Series B Preferred Stock	Series A Preferred Stock
Balance at Dec. 31, 2019	$ (51,503)		$ 3,748	$ 68	$ (55,319)
Temporary equity, Balance, Shares at Dec. 31, 2019						14,877,697	44,520,653
Temporary equity, Balance at Dec. 31, 2019						$ 120,923	$ 52,204
Balance, Shares at Dec. 31, 2019		2,099,740
Initial public offering, net of underwriting discounts, commissions and offering costs	291,975	$ 2	291,973
Initial public offering, net of underwriting discounts, commissions and offering costs, Shares		18,687,500
Temporary equity conversion of convertible preferred stock into common stock upon initial public offering, Shares						(14,877,697)	(44,520,653)
Temporary equity conversion of convertible preferred stock into common stock upon initial public offering						$ (120,923)	$ (52,204)
Conversion of convertible preferred stock into common stock upon initial public offering	173,127	$ 5	173,122
Conversion of convertible preferred stock into common stock upon initial public offering, Shares		39,859,139
Stock-based compensation	9,429		9,429
Issuance of common stock, upon vesting of restricted stock, Shares		1,284,876
Unrealized gain (loss) on available-for-sale securities	(90)			(90)
Foreign currency translation adjustment	(90)			(90)
Net loss	(69,784)				(69,784)
Balance at Dec. 31, 2020	353,064	$ 7	478,272	(112)	(125,103)
Balance, Shares at Dec. 31, 2020		61,931,255
Stock-based compensation	43,975		43,975
Issuance of common stock, upon vesting of restricted stock, Shares		1,609,479
Issuance of common stock, upon exercise of common stock	$ 232		232
Issuance of common stock, upon exercise of common stock, Shares	25,152	25,152
Unrealized gain (loss) on available-for-sale securities	$ 1			1
Foreign currency translation adjustment	(44)			(44)
Net loss	(171,962)				(171,962)
Balance at Dec. 31, 2021	$ 225,266	$ 7	$ 522,479	$ (155)	$ (297,065)
Balance, Shares at Dec. 31, 2021		63,565,886