Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating activities
Net income (loss)	$ (42,258)	$ 22,720
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:
Depreciation and amortization	258	195
Non-cash operating lease expense	872	965
Stock-based compensation	6,804	2,219
Accretion of debt discount and debt issuance costs	0	(198)
Accretion of premiums/discounts on marketable securities, net	(3,940)	(2,675)
Change in fair value of warrant liability	106	(5)
Gain on sale of equipment	(16)	0
Change in fair value of investor rights and obligations liability	0	(2,867)
(Gain) loss on marketable securities	(5)	19
Changes in operating assets and liabilities
Prepaid expenses and other current assets	887	(1,277)
Other long-term assets	937	7
Accounts payable	1,141	0
Accrued expenses	2,303	1,594
Other long-term liabilities	0	(20)
Operating lease liabilities	66	(1,328)
Net cash provided by (used in) operating activities	(32,845)	19,349
Investing activities
Purchase of property and equipment	(514)	(414)
Proceeds from sale of equipment	20	0
Purchases of marketable securities	(226,407)	(141,866)
Sales and maturities of marketable securities	157,162	76,712
Net cash used in investing activities	(69,739)	(65,568)
Financing activities
Proceeds from issuance of common stock upon initial public offering, net of underwriting discounts and commissions and other offering costs	108,211	0
Proceeds from issuance of Series C convertible preferred stock, net of offering costs	0	60,138
Payments of deferred offering costs	0	(343)
Principal payments on debt	0	(3,750)
Proceeds from exercise of stock options	405	159
Proceeds from employee stock purchase plan	385	0
Repurchase of restricted stock	0	(28)
Net cash provided by financing activities	109,001	56,176
Net increase in cash and cash equivalents	6,417	9,957
Cash and cash equivalents at beginning of year	15,526	5,569
Cash and cash equivalents at end of year	21,943	15,526
Supplemental disclosure of cash flow information
Income taxes paid	0	450
Interest paid	0	150
Supplemental disclosure of non-cash investing and financing activities
Deferred offering costs included in accounts payable and accrued liabilities	0	905
Property and equipment purchases included in accounts payable	58	30
Reclassification of warrants from liability to equity	216	0
Reclassification of deferred offering costs paid in prior year to equity	343	0
Right-of-use assets obtained in exchange for lease liabilities	5,620	0
Conversion of Convertible Preferred Stock to Common Stock [Member]
Supplemental disclosure of non-cash investing and financing activities
Conversion of convertible preferred stock to common stock upon initial public offering	$ 192,620	$ 0