CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Beginning balance at Dec. 31, 2021	$ 50	$ 813,041	$ (1)	$ (528,939)	$ 284,151
Beginning balance (in shares) at Dec. 31, 2021	50,283,574
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		4,611			4,611
Issuance of common stock in connection with ESPP		399			399
Issuance of common stock in connection with ESPP (in shares)	61,518
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units (in shares)	48,639
Unrealized loss or gain on marketable securities			(628)		(628)
Net loss				(52,764)	(52,764)
Ending balance at Mar. 31, 2022	$ 50	818,051	(629)	(581,703)	235,769
Ending balance (in shares) at Mar. 31, 2022	50,393,731
Beginning balance at Dec. 31, 2022	$ 56	974,356	(92)	(710,058)	264,262
Beginning balance (in shares) at Dec. 31, 2022	56,612,429
Increase (Decrease) in Stockholders' Equity
Stock-based compensation expense		6,376			6,376
Issuance of common stock in connection with ESPP		665			665
Issuance of common stock in connection with ESPP (in shares)	32,169
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units		553			553
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units (in shares)	207,806
Foreign currency translation adjustment			21		21
Unrealized loss or gain on marketable securities			65		65
Net loss				(52,179)	(52,179)
Ending balance at Mar. 31, 2023	$ 56	$ 981,950	$ (6)	$ (762,237)	$ 219,763
Ending balance (in shares) at Mar. 31, 2023	56,852,404