Condensed Statements of Cash Flows	3 Months Ended	9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)
Operating Activities
Net loss		$ (26,857,000)	$ (1,826,000)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation	$ 65,000	99,000	2,300
Non-cash operating lease expense		566,000	42,000
Stock-based compensation expense		4,303,000
Net amortization of premiums and accretion of discounts on investments		361,000
Changes in operating assets and liabilities:
Prepaid expenses and other current assets		(1,170,000)	(147,000)
Other assets		(11,000)
Accounts payable		419,000	118,000
Accrued expenses and other current liabilities		3,205,000	112,000
Lease liabilities		(454,000)	(24,000)
Net cash used in operating activities		(19,539,000)	(1,723,000)
Investing Activities
Purchase of property and equipment		(2,878,000)	(12,000)
Purchase of investments		(38,492,000)
Maturities of investments		3,465,000
Net cash used in investing activities		(37,905,000)	(12,000)
Financing Activities
Proceeds from issuance of common stock from seed series			9,542,000
Series A financing costs incurred		(3,000)
Net proceeds from issuance of common stock from initial public offering		152,753,000
Proceeds from stock option exercise		225,000
Proceeds (payment) from Paycheck Protection Program loan		(36,000)	36,000
Net cash provided by financing activities		152,939,000	9,578,000
Net increase in cash, cash equivalents, and restricted cash		95,495,000	7,843,000
Cash, cash equivalents, and restricted cash at the beginning of the period		61,695,000	239,000
Cash, cash equivalents, and restricted cash at the end of the period	157,190,000	157,190,000	8,082,000
Non-cash financing and investing activities:
Conversion of convertible preferred stock into common stock		55,735,000
Acquisition of right of use asset		3,216,000	334,000
Acquisition of fixed assets in accounts payable and accrued liabilities		103,000	12,000
Change in unrealized gain on investments		2,000
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents	156,974,000	156,974,000	8,082,000
Restricted cash	216,000	216,000
Cash, cash equivalents, and restricted cash at the end of the period	$ 157,190,000	$ 157,190,000	$ 8,082,000