Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Balances at beginning at Dec. 31, 2021	$ 4	$ 514,794	$ (102)	$ (359,767)	$ 154,929
Balances at beginning (in shares) at Dec. 31, 2021	37,758,797
Issuance of common stock through "at-the-market" offering, net of underwriter discount and issuance costs		3,509			3,509
Issuance of common stock through "at-the-market" offering, net of underwriter discount and issuance costs (in shares)	700,000
Issuance of common stock upon exercise of options		76			76
Issuance of common stock upon exercise of options (in shares)	16,666
Issuance of Class A common stock under the Employee Stock Purchase Plan		177			177
Issuance of Class A common stock under the Employee Stock Purchase Plan (shares)	115,973
Stock-based compensation		9,824			9,824
Unrealized gain (loss) on available-for-sale debt securities			(559)		(559)
Net loss				(52,753)	(52,753)
Balances at end at Jun. 30, 2022	$ 4	528,380	(661)	(412,520)	115,203
Balances at end (in shares) at Jun. 30, 2022	38,591,436
Balances at beginning at Mar. 31, 2022	$ 4	522,893	(470)	(384,643)	137,784
Balances at beginning (in shares) at Mar. 31, 2022	38,591,436
Stock-based compensation		5,487			5,487
Unrealized gain (loss) on available-for-sale debt securities			(191)		(191)
Net loss				(27,877)	(27,877)
Balances at end at Jun. 30, 2022	$ 4	528,380	(661)	(412,520)	115,203
Balances at end (in shares) at Jun. 30, 2022	38,591,436
Balances at beginning at Dec. 31, 2022	$ 4	535,592	(266)	(456,924)	78,406
Balances at beginning (in shares) at Dec. 31, 2022	39,067,391
Issuance of Class A common stock under the Employee Stock Purchase Plan		110			110
Issuance of Class A common stock under the Employee Stock Purchase Plan (shares)	89,193
Stock-based compensation		6,086			6,086
Unrealized gain (loss) on available-for-sale debt securities			268		268
Net loss				(40,196)	(40,196)
Balances at end at Jun. 30, 2023	$ 4	541,788	2	(497,120)	44,674
Balances at end (in shares) at Jun. 30, 2023	39,156,584
Balances at beginning at Mar. 31, 2023	$ 4	538,924	(28)	(477,934)	60,966
Balances at beginning (in shares) at Mar. 31, 2023	39,156,584
Stock-based compensation		2,864			2,864
Unrealized gain (loss) on available-for-sale debt securities			30		30
Net loss				(19,186)	(19,186)
Balances at end at Jun. 30, 2023	$ 4	$ 541,788	$ 2	$ (497,120)	$ 44,674
Balances at end (in shares) at Jun. 30, 2023	39,156,584