CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net loss	$ (43,784,000)	$ (18,032,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	151,000	58,000
Non-cash interest expense	59,000	555,000
Non-cash lease expense	200,000	143,000
In-process research and development	0	7,000,000
Stock-based compensation expense	4,275,000	497,000
Income tax benefit	(52,000)	0
Gain on forgiveness of PPP Note	(426,000)	0
Impairment on note receivable	761,000	0
Other non-cash	0	(166,000)
Changes in assets and liabilities:
Prepaid expenses and other assets	845,000	796,000
Accounts payable and accrued expenses	2,925,000	(1,133,000)
Other assets	100,000	0
Lease obligations	(191,000)	(144,000)
Net cash used in operating activities	(35,137,000)	(10,426,000)
Cash flows from investing activities
Purchase of property and equipment	(747,000)	(56,000)
Asset acquisition	(127,000)	0
Issuance of note receivable	(750,000)	0
Net cash used in investing activities	(1,624,000)	(56,000)
Cash flows from financing activities
Proceeds from issuance of common stock	128,606,000	26,693,000
Payment of equity issuance costs	(8,525,000)	(1,084,000)
Proceeds from issuance of debt	0	921,000
Payments of debt issuance costs	0	(6,000)
Repayments of debt	0	(4,362,000)
Financing lease principal payments	(10,000)	(18,000)
Net cash provided by financing activities	120,071,000	22,144,000
Net increase in cash, cash equivalents, and restricted cash	83,310,000	11,662,000
Cash, cash equivalents, and restricted cash at beginning of period	24,190,000	7,595,000
Cash, cash equivalents, and restricted cash at end of period	107,500,000	19,257,000
Supplemental disclosure of non-cash investing and financing transactions:
Exercise of warrants	603,000	0
Series B Convertible Preferred Stock issuance	4,988,000	0
Forgiveness of PPP Note	426,000	0
Purchase of property and equipment	9,000	0
Right-of-use asset related to operating leases	926,000	0
Issuance of Warrant Exchange Promissory Notes	0	5,625,000
Obligation settled with common stock	0	331,000
Equity issuance costs	$ 0	$ 25,000