CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net loss	$ (18,031,641)	$ (32,624,697)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	57,565	34,626
Non-cash interest expense	554,801	1,718,546
Non-cash lease expense	142,947	202,665
In-process research and development	7,000,000	0
Change in fair value of derivative liability	0	19,896,626
Stock-based compensation expense	498,012	720,014
Loss on debt conversion	0	341,136
Other non-cash	(165,609)	0
Changes in assets and liabilities:
Prepaid expenses and other assets	794,398	(280,838)
Accounts payable and accrued expenses	(1,133,092)	2,044,901
Lease obligations	(143,834)	(202,338)
Net cash used in operating activities	(10,426,453)	(8,149,359)
Cash flows from investing activities
Purchase of property and equipment	(55,488)	(2,067)
Payment of reverse asset acquisition costs	0	(2,334,063)
Net cash used in investing activities	(55,488)	(2,336,130)
Cash flows from financing activities
Financing lease principal payments	(17,892)	(16,985)
Proceeds from issuance of common stock	26,692,377	999,832
Payment of equity issuance costs	(1,083,990)	(649,254)
Proceeds from issuance of debt	921,415	6,800,000
Payments of debt issuance costs	(5,740)	(122,262)
Repayments of debt	(4,362,271)	(5,290,000)
Proceeds from Pre-Merger Financing	0	22,437,537
Net cash provided by financing activities	22,143,899	24,158,868
Effect of changes in exchange rate on cash	0	0
Net increase in cash, cash equivalents and restricted cash	11,661,958	13,673,379
Cash, cash equivalents and restricted cash at beginning of period	7,595,068	1,778,613
Cash, cash equivalents and restricted cash at end of period	19,257,026	15,451,992
Supplemental disclosure of non-cash transactions:
Issuance of Warrant Exchange Promissory Notes	5,625,000	0
Obligation settled with common stock	331,218	0
Conversion of convertible notes	0	13,979,788
Right-of-use asset related to operating leases	0	470,356
Equity issuance costs	25,000	1,150,000
Reverse asset acquisition costs	$ 0	$ 2,711,431