Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating activities
Net loss	$ (32,039)	$ (17,265)
Reconciliation of net loss to net cash used in operating activities:
Stock-based compensation	1,571	52
Depreciation expense	18	15
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(1,722)	(1,212)
Other assets, net		(65)
Accounts payable	(30)	5,219
Accrued expenses	2,035	958
Net cash used in operating activities	(30,167)	(12,298)
Investing activities
Purchases of property and equipment		(71)
Net cash used in investing activities		(71)
Financing activities
Proceeds from the issuance of restricted common stock		20
Proceeds from issuance of common stock upon initial public offering, net of issuance costs	97,062
Proceeds from the issuance of convertible preferred stock		90,183
Cash paid for issuance costs of convertible preferred stock	(11)	(174)
Net cash provided by financing activities	97,051	90,029
Increase in cash and cash equivalents	66,884	77,660
Cash and cash equivalents, beginning of year	79,400	1,740
Cash and cash equivalents, end of year	146,284	79,400
Supplemental disclosure of non-cash financing activities
Issuance costs in accrued expenses		$ 11
Conversion of convertible preferred stock upon IPO	$ 97,188