CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash flow from operating activities:
Net loss	$ (51,511)	$ (22,963)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	5,476	2,043
Depreciation and amortization expense	68	15
Accretion of discounts and amortization of premiums on investments, net	(910)	16
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	4,677	(6,855)
Other long-term assets	(1,872)	(302)
Accounts payable	1,368	609
Accrued and other liabilities	3,672	(6)
Operating lease assets and liabilities, net	43	32
Other liabilities	(133)	12
Net cash used in operating activities	(39,122)	(27,399)
Cash flow from investing activities:
Purchases of short-term investments	(147,623)	(113,253)
Sales and maturities of short-term investments	154,744
Purchases of property and equipment	(195)	(181)
Net cash provided by (used in) investing activities	6,926	(113,434)
Cash flow from financing activities:
Proceeds from sale of Series A redeemable convertible preferred stock, net of issuance costs		63,512
Payments for deferred offering costs	(371)
Proceeds from issuance of common stock under ESPP	150
Proceeds from exercise of stock options	617
Proceeds from issuance of common stock, net of issuance costs		126,945
Net cash provided by financing activities	396	190,457
Net (decrease) increase in cash and cash equivalents	(31,800)	49,624
Cash and cash equivalents at the beginning of the year	54,197	4,573
Cash and cash equivalents at the end of the period	22,397	54,197
Supplemental disclosure of noncash investing and financing activities:
Right-of-use asset obtained in exchange for operating lease liability	765	542
Deferred offering costs included in accounts payable	$ 15
Purchases of property and equipment in accounts payable		21
Conversion of redeemable convertible preferred stock to common stock upon initial public offering		$ 79,818