STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock Voting Common Stock	Common Stock Non-voting Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2021	$ 285,897	$ 4	$ 1	$ 505,723	$ (711)	$ (219,120)
Beginning balance (shares) at Dec. 31, 2021		36,200,299	11,402,037
Issuance of common stock upon exercise of stock options & vesting of RSUs	389			389
Issuance of common stock upon exercise of stock options & vesting of RSUs, (shares)		222,905
Issuance of common stock under ESPP	426			426
Issuance of common stock under ESPP, (shares)		97,206
Unrealized gain on marketable securities, net of tax	(981)				(981)
Stock-based compensation expense, net of forfeitures of restricted stock	25,144			25,144
Stock-based compensation expense, net of forfeitures of restricted stock (shares)		(23,416)
Net loss	(115,438)					(115,438)
Ending balance at Dec. 31, 2022	195,437	$ 4	$ 1	531,682	(1,692)	(334,558)
Ending balance (shares) at Dec. 31, 2022		36,496,994	11,402,037
Issuance of common stock and prefunded warrants, net of issuance costs of $2.6 million	135,290			135,290
Issuance of common stock and prefunded warrants, net of issuance costs of $2.6 million (shares)		5,312,978	1,448,222
Issuance of common stock upon exercise of stock options & vesting of RSUs	30			30
Issuance of common stock upon exercise of stock options & vesting of RSUs, (shares)		84,166
Issuance of common stock under ESPP	634			634
Issuance of common stock under ESPP, (shares)		169,857
Unrealized gain on marketable securities, net of tax	1,915				1,915
Stock-based compensation expense, net of forfeitures of restricted stock	25,616			25,616
Net loss	(121,832)					(121,832)
Ending balance at Dec. 31, 2023	$ 237,090	$ 4	$ 1	$ 693,252	$ 223	$ (456,390)
Ending balance (shares) at Dec. 31, 2023		42,063,995	12,850,259