Condensed Consolidated Statements of Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Total
Beginning balance at Dec. 31, 2020	$ 31	$ 282,053		$ (135,928)	$ 146,156
Beginning balance (in shares) at Dec. 31, 2020	31,464,989
Issuance of common stock upon exercise of stock options	$ 1	144			145
Issuance of common stock upon exercise of stock options (in shares)	36,963
Stock-based compensation expense		1,704			1,704
Net loss				(18,973)	(18,973)
Ending balance at Mar. 31, 2021	$ 32	283,901		(154,901)	129,032
Ending balance (in shares) at Mar. 31, 2021	31,501,952
Beginning balance at Dec. 31, 2020	$ 31	282,053		(135,928)	146,156
Beginning balance (in shares) at Dec. 31, 2020	31,464,989
Net loss					(59,566)
Ending balance at Sep. 30, 2021	$ 32	288,766		(195,494)	93,304
Ending balance (in shares) at Sep. 30, 2021	32,201,338
Beginning balance at Dec. 31, 2020	$ 31	282,053		(135,928)	146,156
Beginning balance (in shares) at Dec. 31, 2020	31,464,989
Net loss					(77,300)
Ending balance at Dec. 31, 2021	$ 32	290,377	$ (10)	(213,239)	77,160
Ending balance (in shares) at Dec. 31, 2021	32,359,895
Beginning balance at Mar. 31, 2021	$ 32	283,901		(154,901)	129,032
Beginning balance (in shares) at Mar. 31, 2021	31,501,952
Issuance of common stock upon exercise of stock options		486			486
Issuance of common stock upon exercise of stock options (in shares)	362,068
Stock-based compensation expense		1,986			1,986
Net loss				(20,437)	(20,437)
Ending balance at Jun. 30, 2021	$ 32	286,373		(175,338)	111,067
Ending balance (in shares) at Jun. 30, 2021	31,864,020
Issuance of common stock upon exercise of stock options		888			888
Issuance of common stock upon exercise of stock options (in shares)	337,318
Stock-based compensation expense		1,505			1,505
Net loss				(20,156)	(20,156)
Ending balance at Sep. 30, 2021	$ 32	288,766		(195,494)	93,304
Ending balance (in shares) at Sep. 30, 2021	32,201,338
Beginning balance at Dec. 31, 2021	$ 32	290,377	(10)	(213,239)	77,160
Beginning balance (in shares) at Dec. 31, 2021	32,359,895
Issuance of common stock upon exercise of stock options		1			1
Issuance of common stock upon exercise of stock options (in shares)	833
Issuance of ESPP shares		47			47
Issuance of ESPP shares (in shares)	38,529
Stock-based compensation expense		1,618			1,618
Unrealized loss on marketable debt securities			(379)		(379)
Net loss				(13,859)	(13,859)
Ending balance at Mar. 31, 2022	$ 32	292,043	(389)	(227,098)	64,588
Ending balance (in shares) at Mar. 31, 2022	32,399,257
Beginning balance at Dec. 31, 2021	$ 32	290,377	(10)	(213,239)	$ 77,160
Beginning balance (in shares) at Dec. 31, 2021	32,359,895
Issuance of common stock upon exercise of stock options (in shares)					833
Net loss					$ (36,876)
Ending balance at Sep. 30, 2022	$ 32	295,129	(636)	(250,115)	44,410
Ending balance (in shares) at Sep. 30, 2022	32,454,237
Beginning balance at Mar. 31, 2022	$ 32	292,043	(389)	(227,098)	64,588
Beginning balance (in shares) at Mar. 31, 2022	32,399,257
Stock-based compensation expense		1,731			1,731
Unrealized loss on marketable debt securities			(167)		(167)
Net loss				(14,346)	(14,346)
Ending balance at Jun. 30, 2022	$ 32	293,774	(556)	(241,444)	51,806
Ending balance (in shares) at Jun. 30, 2022	32,399,257
Issuance of common stock upon exercise of stock options (in shares)	25,460
Issuance of ESPP shares		13			13
Issuance of ESPP shares (in shares)	29,520
Stock-based compensation expense		1,342			1,342
Unrealized loss on marketable debt securities			(80)		(80)
Net loss				(8,671)	(8,671)
Ending balance at Sep. 30, 2022	$ 32	$ 295,129	$ (636)	$ (250,115)	$ 44,410
Ending balance (in shares) at Sep. 30, 2022	32,454,237