STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock Voting Common Stock	Common Stock Non-voting Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance at Dec. 31, 2022	$ 195,437	$ 4	$ 1	$ 531,682	$ (1,692)	$ (334,558)
Beginning balance (shares) at Dec. 31, 2022		36,496,994	11,402,037
Issuance of common stock upon exercise of stock options & vesting of RSUs	28			28
Issuance of common stock upon exercise of stock options & vesting of RSUs, (shares)		17,224
Unrealized gain (loss) on marketable securities, net of tax	1,294				1,294
Stock-based compensation expense	6,256			6,256
Net loss	(27,718)					(27,718)
Ending balance at Mar. 31, 2023	175,297	$ 4	$ 1	537,966	(398)	(362,276)
Ending balance (shares) at Mar. 31, 2023		36,514,218	11,402,037
Beginning balance at Dec. 31, 2023	237,090	$ 4	$ 1	693,252	223	(456,390)
Beginning balance (shares) at Dec. 31, 2023		42,063,995	12,850,259
Issuance of common stock upon exercise of stock options & vesting of RSUs	(14)			(14)
Issuance of common stock upon exercise of stock options & vesting of RSUs, (shares)		7,510
Unrealized gain (loss) on marketable securities, net of tax	(458)				(458)
Stock-based compensation expense	5,547			5,547
Net loss	(31,431)					(31,431)
Ending balance at Mar. 31, 2024	$ 210,734	$ 4	$ 1	$ 698,785	$ (235)	$ (487,821)
Ending balance (shares) at Mar. 31, 2024		42,071,505	12,850,259