CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flow from operating activities
Net loss	$ (6,324)	$ (8,332)
Adjustments to reconcile net loss to net cash used in operating activities
Stock-based compensation	591	432
Amortization of right of use assets	63	58
Depreciation	56	54
(Increase) decrease in operating assets
Prepaid drug product	(840)	(204)
Other current assets	(591)	(489)
Increase (decrease) in operating liabilities
Accounts payable and accrued expenses	(1)	176
Lease liabilities	(70)	(63)
Net cash used in operating activities	(7,116)	(8,368)
Cash flow from investing activities
Purchases of furniture, fixtures & equipment	(47)
Net cash used in investing activities	(47)
Cash flow from financing activities
Net proceeds from sale of common stock	15,852
Net proceeds from exercise of warrants	4,157
Net cash provided by financing activities	20,009
Net increase (decrease) in cash	12,846	(8,368)
Cash, beginning of period	13,755	20,426
Cash, end of period	$ 26,601	$ 12,058