CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flow from operating activities
Net loss	$ (1,916)	$ (397)
Adjustments to reconcile net loss to net cash used in operating activities
Amortization	40	40
Depreciation	66	33
Stock-based compensation	124	249
Change in fair value of warrant liability	0	(1,596)
(Increase) decrease in assets
Prepaid drug product for testing	(139)	(1)
Other current assets	23	40
Increase (decrease) in liabilities
Accounts payable and accrued expenses	138	(208)
Net cash used in operating activities	(1,664)	(1,840)
Cash flow from investing activities
Purchases of furniture, fixtures & equipment	(17)	(424)
Net cash used in investing activities	(17)	(424)
Cash flow from financing activities
Net decrease in cash	(1,681)	(2,264)
Cash, beginning of period	5,965	9,375
Cash, end of period	4,284	7,111
Non-cash financing activities
Capital expenditures included in accrued expenses	$ 0	$ 114