Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Redeemable Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2019	$ (60,366)			$ 9,258	$ (69,647)	$ 23
Balance, temporary equity, shares at Dec. 31, 2019		97,166,921
Balance, temporary equity at Dec. 31, 2019		$ 114,083
Balance, shares at Dec. 31, 2019			2,155,578
Issuance of common stock upon exercise of stock options	460		$ 1	459
Issuance of common stock upon exercise of stock options, shares			210,752
Stock-based compensation expense	5,263			5,263
Conversion of shares of redeemable convertible preferred stock to shares of common stock in connection with the Merger	114,083		$ 1	114,082
Conversion of shares of redeemable convertible preferred stock to shares of common stock in connection with the Merger, shares		(97,166,921)
Conversion of shares of redeemable convertible preferred stock to shares of common stock in connection with the Merger		$ (114,083)
Conversion of shares of redeemable convertible preferred stock to shares of common stock in connection with the Merger, shares			12,048,671
Exchange of common stock in connection with the Merger	83,516			83,516
Exchange of common stock in connection with the Merger, shares			5,207,695
Issuance of common stock upon accelerated vesting ofrestricted stock units in connection with the Merger	626			626
Issuance of common stock upon accelerated vesting of restricted stock units in connection with the Merger (Shares)			54,553
Conversion of redeemable convertible preferred stock warrants to common stock warrants	2,922			2,922
Net loss	(36,678)				(36,678)
Other comprehensive loss	1					1
Balance at Dec. 31, 2020	109,827		$ 2	216,126	(106,325)	24
Balance, temporary equity, shares at Dec. 31, 2020		0
Balance, temporary equity at Dec. 31, 2020
Balance, shares at Dec. 31, 2020			19,677,249
Issuance of common stock upon exercise of stock options	$ 4,688			4,688
Issuance of common stock upon exercise of stock options, shares	1,125,339		1,125,339
Issuance of common stock related to financing, net of issuance costs of $823,940	$ 237,997		$ 2	237,995
Issuance of common stock related to financing, net of issuance costs of $823,940, shares			18,916,853
Issuance of common stock for cashless exercise of warrants
Issuance of common stock for cashless exercise of warrants, shares			1,806
Issuance of common stock resulting from Employee Stock Purchase Plan	129			129
Issuance of common stock resulting from Employee Stock Purchase Plan, shares			15,667
Stock-based compensation expense	12,511			12,511
Conversion of redeemable convertible preferred stock warrants to common stock warrants
Net loss	(61,999)				(61,999)
Other comprehensive loss	(24)					(24)
Balance at Dec. 31, 2021	$ 303,129		$ 4	$ 471,449	$ (168,324)
Balance, temporary equity, shares at Dec. 31, 2021		0
Balance, temporary equity at Dec. 31, 2021
Balance, shares at Dec. 31, 2021			39,736,914