CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (60,388)	$ (31,167)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	536	364
Stock-based compensation expense	11,618	2,185
Non-cash lease expense	778	731
Net amortization of premiums and accretion of discounts on investments	(3,323)	(698)
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	2,110	(3,539)
Accounts payable	3,609	(245)
Accrued expenses and other liabilities	3,173	2,919
Operating lease liabilities	(754)	(667)
Net cash used in operating activities	(42,641)	(30,117)
Cash flows from investing activities:
Purchases of short-term and long-term investments	(56,528)	(150,178)
Proceeds from maturities of short-term investments	108,533	10,668
Purchases of property and equipment	(1,288)	(2,166)
Net cash provided by (used in) investing activities	50,717	(141,676)
Cash flows from financing activities:
Proceeds from initial public offering of common stock, net of commissions and underwriting discounts		99,808
Proceeds from issuance of common stock upon Concurrent Private Placement, net of placement agent fee		4,650
Proceeds from exercise of stock options	775	24
Payments of offering costs	(1,032)	(2,773)
Payments of tax withholdings related to vesting of restricted stock units	(1,297)
Net cash (used in) provided by financing activities	(1,554)	101,709
Net increase (decrease) in cash, cash equivalents, and restricted cash	6,522	(70,084)
Cash, cash equivalents and restricted cash at beginning of period	29,907	99,991
Cash, cash equivalents and restricted cash at end of period	36,429	29,907
Supplemental disclosure of non-cash investing and financing activities:
Conversion of convertible preferred stock to common stock		122,518
Purchases of property and equipment included in accounts payable	635
Supplemental cash flow information:
Right-of-use assets obtained in exchange for operating lease liability	437
Deferred offering costs in accounts payable and accrued expenses and other current liabilities	85	866
Reconciliation of cash, cash equivalents, and restricted cash:
Cash and cash equivalents	36,015	29,519
Restricted cash	414	388
Total cash, cash equivalents, and restricted cash	$ 36,429	$ 29,907