Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (7,039,248)	$ (3,906,142)	$ (10,577,317)	$ (6,853,562)
Adjustments to reconcile net loss to net cash used in operating activities
Compensation cost for stock options granted			1,853,861	1,724,236
Disposal of assets			0	2,226
Depreciation and amortization			15,048	24,711
Changes in operating assets and liabilities:
Prepaid expenses			(578,064)	(602,022)
Research and development tax rebate receivable			(182,169)	(20,966)
Other assets			582,590	(237,827)
Accounts payable			(1,050,698)	739,536
Accrued expenses			438,235	14,967
Payroll liabilities			(263,077)	(244,012)
Other current liabilities			16,530	(6,704)
Net cash used in operating activities			(9,745,061)	(5,459,417)
CASH FLOWS FROM INVESTING ACTIVITY
Purchase of furniture and equipment			0	(6,610)
Net cash used in investing activities			0	(6,610)
CASH FLOWS FROM FINANCING ACTIVITY
Proceeds from issuance of common stock, net of issuance costs			0	347,627
Proceeds from issuance of common stock and warrants, net of issuance costs			69,668,408	0
Proceeds from exercise of warrants	10,196,000	0	42,955,943	0
Net cash provided by financing activities			112,624,351	347,627
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH			102,879,290	(5,118,400)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING BALANCE			39,663,671	12,691,136
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, ENDING BALANCE	142,542,961	7,572,736	142,542,961	7,572,736
SUPPLEMENTAL DISCLOSURES
Cash and cash equivalents	142,432,961	7,462,736	142,432,961	7,462,736
Restricted cash	110,000	110,000	110,000	110,000
Total cash, cash equivalents and restricted cash shown in the condensed consolidated statements of cash flows	$ 142,542,961	$ 7,572,736	142,542,961	7,572,736
NONCASH INVESTING AND FINANCING ACTIVITIES
Reclassification of the warrant liability to equity upon adoption of accounting standard			13,003,075	0
Conversion of Series B Convertible Preferred Stock into Common Stock [Member]
NONCASH INVESTING AND FINANCING ACTIVITIES
Conversion of convertible preferred stock to common stock			$ 34,000	$ 45,000