Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities
Net loss	$ (35,005)	$ (14,983)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation and amortization expense	44	29
Stock-based compensation expense	2,659	958
Amortization of premium and accretion of discounts on short-term investments, net	50	2
Changes in operating assets and liabilities:
Prepaid and other current assets	2,072	(7,949)
Operating lease right-of-use asset and liability, net	(3)	21
Other assets	(167)	52
Accounts payable	(4,037)	3,079
Accrued research and development	1,491	2,475
Other accrued liabilities	(1,646)	566
Net cash used in operating activities	(34,542)	(15,750)
Investing activities
Purchases of short-term investments	(17,140)	(46,636)
Purchases of property and equipment		(43)
Maturities of short-term investments	69,900
Net cash provided by (used in) investing activities	52,760	(46,679)
Financing Activities
Proceeds from initial public offering		121,494
Proceeds from the issuance of common stock under the Company's equity incentive plans and employee stock purchase plan	411	85
Net cash provided by financing activities	411	121,579
Net increase in cash and cash equivalents	18,629	59,150
Cash and cash equivalents at beginning of period	24,780	58,863
Cash and cash equivalents at end of period	$ 43,409	118,013
Supplemental schedule of non-cash investing and financing activities:
Conversion of convertible preferred stock to common stock		$ 94,697