Condensed Statements of Cash Flows - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net loss			$ (14,251,000)	$ (691,000)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation	$ 22,000	$ 0	34,000	0
Non-cash operating lease expense			381,000
Stock-based compensation expense			2,382,000
Net amortization of premiums and accretion of discounts on investments			204,000
Changes in operating assets and liabilities:
Prepaid expenses and other current assets			(1,421,000)	6,000
Other assets			12,000
Accounts payable			237,000	72,000
Accrued expenses and other current liabilities			2,259,000	(8,000)
Lease liabilities			(388,000)
Net cash used in operating activities			(10,551,000)	(621,000)
Investing Activities
Purchase of property and equipment			(838,000)
Purchase of short-term and long-term investments			(38,492,000)
Maturities of short-term and long-term investments			1,500,000
Net cash used in investing activities			(37,830,000)
Financing Activities
Proceeds from issuance of common stock from series seed				9,610,000
Series A financing costs incurred			(3,000)	(68,000)
Net proceeds from issuance of common stock from initial public offering			152,753,000
Proceeds from stock option exercise			225,000
Proceeds (payments) 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			104,558,000	8,957,000
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	166,253,000	9,196,000	166,253,000	9,196,000
Non-cash financing and investing activities:
Acquisition of fixed assets in accounts payable and accrued liabilities			610,000
Acquisition of right of use asset			3,216,000
Change in unrealized gain on investments			2,000
Conversion of convertible preferred stock into common stock			55,735,000
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents	166,037,000	9,196,000	166,037,000	9,196,000
Restricted cash	216,000		216,000
Cash, cash equivalents, and restricted cash at the end of the period	$ 166,253,000	$ 9,196,000	$ 166,253,000	$ 9,196,000