Condensed Consolidated Statements of Cash Flows (Unaudited) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (7,039)	$ (11,457)	$ (10,577)
Adjustments to reconcile net loss to net cash used in operating activities
Compensation cost for stock options granted		3,577	1,854
Depreciation and amortization		4	15
Disposal of assets		1	0
Changes in operating assets and liabilities:
Prepaid expenses		(2,816)	(578)
Research and development rebate receivable		172	(182)
Other assets		(974)	582
Accounts payable		335	(1,051)
Accrued expenses		630	438
Payroll liabilities		(309)	(263)
Other current liabilities		10	17
Net cash used in operating activities		(10,827)	(9,745)
CASH FLOWS FROM INVESTING ACTIVITY
Purchase of furniture and equipment		(13)	0
Net cash used in investing activities		(13)	0
CASH FLOWS FROM FINANCING ACTIVITY
Proceeds from issuance of common stock and warrants, net of issuance costs		0	69,668
Proceeds from exercise of warrants	10,196	0	42,956
Net cash provided by financing activities		0	112,624
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH		(10,840)	102,879
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING BALANCE		136,487	39,664
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, ENDING BALANCE	142,543	125,647	142,543
SUPPLEMENTAL DISCLOSURES
Cash and cash equivalents	142,433	125,537	142,433
Restricted cash	110	110	110
Total cash, cash equivalents and restricted cash shown in the condensed consolidated statements of cash flows	$ 142,543	125,647	142,543
NONCASH INVESTING AND FINANCING ACTIVITIES
Reclassification of the warrant liability to equity upon adoption of accounting standard		0	13,003
Conversion of Series B Convertible Preferred Stock into Common Stock [Member]
NONCASH INVESTING AND FINANCING ACTIVITIES
Conversion of Series B convertible preferred stock to common stock		$ 0	$ 34