Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net loss	$ (58,763)	$ (35,251)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	1,177	831
Stock-based compensation expense	6,412	2,307
Accretion on marketable securities	(527)
Gain (loss) on disposal of property and equipment	(22)	3
Other	224	15
Changes in operating assets and liabilities:
Prepaid expenses and other assets	(3,253)	(3,575)
Other long-term assets	(423)
Accounts payable	340	1,054
Accrued expenses and other liabilities	234	2,206
Net cash used in operating activities	(54,601)	(32,410)
Cash flows from investing activities:
Purchases of property and equipment	(1,094)	(2,125)
Purchase of marketable securities	(119,784)
Maturities and proceeds from the sale of marketable securities	53,009
Net cash used in investing activities	(67,869)	(2,125)
Cash flows from financing activities:
Proceeds from issuance of common stock upon initial public offering, net of issuance costs		78,697
Proceeds from issuance of common stock from follow-on offering, net of issuance costs	86,650
Proceeds from issuance of common stock under ATM facility, net of issuance costs	8,549
Proceeds from exercise of stock options	430	349
Other		(15)
Net cash provided by financing activities	95,629	166,259
Net (decrease) increase in cash, cash equivalents and restricted cash	(26,841)	131,724
Cash, cash equivalents and restricted cash at beginning of period	149,211	17,487
Cash, cash equivalents and restricted cash at end of period	122,370	149,211
Supplemental disclosure of cash flow information:
Purchases of property and equipment in accounts payable and accrued expenses and other liabilities	180	386
Initial measurement of operating lease right-of-use assets and liabilities		536
Right-of-use assets obtained in exchange for operating lease liabilities	21,210	516
Remeasurement of operating lease right-of-use assets and liabilities for lease modification		390
Deferred offering costs in accounts payable		377
Loss on termination of operating lease	$ 296
Series D Convertible Preferred Stock
Cash flows from financing activities:
Proceeds from issuance of convertible preferred stock, net of issuance costs		6,982
Series E Convertible Preferred Stock
Cash flows from financing activities:
Proceeds from issuance of convertible preferred stock, net of issuance costs		$ 80,246