Condensed Statement of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning Balance at Dec. 31, 2021	$ 374,081	$ 47	$ 1,000,212	$ (184)	$ (625,994)
Beginning Balance (shares) at Dec. 31, 2021		47,241
Issuance of common stock through employee stock purchase plan	2,063		2,063
Issuance of common stock through employee stock purchase plan (shares)		55
Issuance of common stock for settlement of RSUs (shares)		88
Stock option exercises	1,660	$ 1	1,659
Stock option exercises (shares)		328
Stock-based compensation expense	5,006		5,006
Unrealized loss on available-for-sale securities	(465)			(465)
Net loss	(36,892)				(36,892)
Ending Balance at Mar. 31, 2022	345,453	$ 48	1,008,940	(649)	(662,886)
Ending Balance (shares) at Mar. 31, 2022		47,712
Beginning Balance at Dec. 31, 2022	245,990	$ 48	1,035,456	(564)	(788,950)
Beginning Balance (shares) at Dec. 31, 2022		48,465
Issuance of common stock through employee stock purchase plan	4,594	$ 1	4,593
Issuance of common stock through employee stock purchase plan (shares)		307
Issuance of common stock for settlement of RSUs (shares)		282
Stock option exercises	684		684
Stock option exercises (shares)		162
Stock-based compensation expense	8,538		8,538
Unrealized loss on available-for-sale securities	451			451
Net loss	(43,971)				(43,971)
Ending Balance at Mar. 31, 2023	$ 216,286	$ 49	$ 1,049,271	$ (113)	$ (832,921)
Ending Balance (shares) at Mar. 31, 2023		49,216