CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Cash flow from operating activities
Net loss	$ (8,599)	$ (8,583)
Adjustments to reconcile net loss to net cash used in operating activities
Stock-based compensation	684	554
Amortization of technology license	0	161
Amortization of right of use assets	96	0
Depreciation	134	265
Impairment of technology license	0	608
(Increase) decrease in operating assets
Prepaid drug product for testing	(444)	785
Other current assets	15	(450)
Increase (decrease) in operating liabilities
Accounts payable and accrued expenses	(168)	536
Lease liabilities	(79)	0
Net cash used in operating activities	(8,361)	(6,124)
Cash flow from investing activities
Purchases of furniture, fixtures & equipment	0	(17)
Net cash used in investing activities	0	(17)
Cash flow from financing activities
Net proceeds from sale of common stock	26,700	1,180
Net proceeds from exercise of warrants	1,083	0
Net cash provided by financing activities	27,783	1,180
Net increase (decrease) in cash	19,422	(4,961)
Cash, beginning of period	1,004	5,965
Cash, end of period	20,426	1,004
Non-cash investing activities
Addition to leasehold improvements	$ 31	$ 0

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