Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (20,577)	$ (9,139)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	224	351
Amortization of right-of-use asset	33
Share-based compensation	2,637	1,074
Deferred rent	(12)	(3)
Forgiveness of PPP Loan		(500)
Changes in operating assets and liabilities:
Prepaid expenses and other assets	4,460	142
Accounts payable	2,182	486
Accrued expenses and other current liabilities	(3,342)	313
Other long-term liabilities	(41)
Net cash used in operating activities	(14,436)	(7,276)
Cash flows from investing activities:
Purchases of property and equipment	(176)	(39)
Net cash used in investing activities	(176)	(39)
Cash flows from financing activities:
Proceeds from sale of common stock and common stock warrants		27,000
Payment from issuance costs related to the sale of common stock and common stock warrants		(486)
Proceeds from exercise of stock options	32	27
Proceeds from exercise of common stock warrants		906
Payment of equipment loan payable		(69)
Net cash provided by financing activities	32	27,378
Net increase (decrease) in cash and cash equivalents and restricted cash	(14,580)	20,063
Cash and cash equivalents and restricted cash at beginning of period	49,329	39,866
Cash and cash equivalents and restricted cash at end of period	34,749	59,929
Supplemental disclosures of cash flow information:
Operating lease right-of-use asset and lease liability recorded upon adoption of ASC 842	$ 215
Offering costs included in accounts payable		110
Purchases of property plant and equipment included in accounts payable		$ 7