CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flow from operating activities
Net income loss	$ 9,507	$ 6,367
Adjustments to reconcile net loss to net cash used in operating activities
Stock-based compensation	376	430
Amortization of right of use assets	47	45
Depreciation	44	43
(Increase) decrease in operating assets
Prepaid drug product	2,518	(1,624)
Other current assets	(102)	451
Increase (decrease) in operating liabilities
Accounts payable and accrued expenses	(263)	343
Lease liabilities	(53)	(50)
Net cash used in operating activities	(6,940)	(6,729)
Cash flow from investing activities
Purchases of furniture, fixtures & equipment		(21)
Net cash used in investing activities		(21)
Cash flow from financing activities
Net decrease in cash	(6,940)	(6,750)
Cash, beginning of period	10,384	23,774
Cash, end of period	$ 3,444	17,024
Non-cash operating activities
Right of use asset recognized in exchange for lease obligation		$ 85