Condensed Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net loss	$ (30,727,000)	$ (17,168,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	180,000	130,000
Stock-based compensation	4,015,000	983,000
Amortization (accretion) of premium (discount) on marketable securities, net	1,085,000
Amortization of right-of-use asset	101,000
Changes in assets and liabilities:
Prepaid expenses and other assets	(1,541,000)	(3,011,000)
Accounts payable	(1,467,000)	1,627,000
Accrued compensation	(773,000)	198,000
Accrued other expenses	243,000	1,415,000
Lease liability	67,000
Net cash used in operating activities	(28,817,000)	(15,826,000)
Cash flows from investing activities
Purchases of marketable securities	(77,707,000)	(231,802,000)
Sales of marketable securities	13,326,000
Maturities of marketable securities	96,644,000	7,200,000
Purchases of property and equipment	(923,000)	(138,000)
Net cash provided by (used in) investing activities	31,340,000	(224,740,000)
Cash flows from financing activities
Proceeds from initial public offering of common stock, net of underwriting discounts and commissions and offering costs		186,148,000
Payment of preferred stock issuance costs		(124,000)
Exercise of stock options	328,000	30,000
Payment of deferred offering costs	(254,000)
Proceeds from Employee Stock Purchase Plan	178,000
Net cash provided by financing activities	252,000	186,054,000
Net change in cash and cash equivalents	2,775,000	(54,512,000)
Cash and cash equivalents at beginning of period	15,566,000	104,916,000
Cash and cash equivalents at end of period	18,341,000	50,404,000
Supplemental disclosures of non-cash investing and financing activities:
Right-of-use asset obtained in exchange for new operating lease liability, net of tenant improvement receivable	1,672,000
Property and equipment purchases included in accounts payable	$ 451,000
Conversion of convertible preferred stock upon closing of initial public offering		$ 160,214,000