CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flow from operating activities
Net loss	$ (2,447)	$ (3,324)
Adjustments to reconcile net loss to net cash used in operating activities
Stock-based compensation	140	170
Amortization of right of use assets	20	19
Depreciation	18	18
(Increase) decrease in operating assets
Prepaid drug product	298	12
Other current assets	78	250
Increase (decrease) in operating liabilities
Accounts payable and accrued expenses	344	341
Lease liabilities	(23)	(21)
Net cash used in operating activities	(1,572)	(2,535)
Cash flow from financing activities
Proceeds from Issuance of Common Stock	14,453
Net proceeds from exercise of warrants	4,157
Net cash provided by financing activities	18,610
Net increase (decrease) in cash	17,038	(2,535)
Cash, beginning of period	13,755	20,426
Cash, end of period	$ 30,793	$ 17,891