Condensed Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating Activities
Net loss			$ (53,942)	$ (33,624)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation expense	$ 400	$ 200	676	336
Non-cash operating lease expense			1,285	282
Stock-based compensation expense			6,669	4,889
Net amortization of premiums and accretion of discounts on investments			1	126
Changes in operating assets and liabilities:
Prepaid expenses and other current assets			1,742	(1,460)
Other assets			(761)	(394)
Accounts payable			(163)	1,081
Accrued expenses and other current liabilities.			(4,171)	3,618
Operating lease liabilities			(1,192)	(275)
Net cash used in operating activities			(49,856)	(25,421)
Investing Activities
Purchase of property and equipment			(3,323)	(368)
Maturities of investments			1,150	28,185
Net cash provided by (used in) investing activities			(2,173)	27,817
Financing Activities
Proceeds from issuance of common stock from public offering, net of offering costs			161,803
Proceeds from stock option exercise and purchases under the employee stock purchase plan			1,235	349
Net cash provided by financing activities			163,038	349
Net increase in cash, cash equivalents, and restricted cash			111,009	2,745
Cash, cash equivalents, and restricted cash at the beginning of the period			112,250	146,087
Cash, cash equivalents, and restricted cash at the end of the period	223,259	148,832	223,259	148,832
Non-cash financing and investing activities:
Acquisition of operating lease right-of-use assets			11,639
Acquisition of property and equipment in accounts payable and accrued liabilities			28
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents	222,908	148,481	222,908	148,481
Restricted cash	351	351	351	351
Cash, cash equivalents, and restricted cash at the end of the period	$ 223,259	$ 148,832	$ 223,259	$ 148,832