Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues
Grant revenue	$ 375	$ 0	$ 375	$ 0
Type of Revenue [Extensible List]	us-gaap:GrantMember	us-gaap:GrantMember	us-gaap:GrantMember	us-gaap:GrantMember
Total revenues	$ 375	$ 0	$ 375	$ 0
Operating expense
Research and development	2,641	172	13,365	422
General and administrative	1,415	915	6,427	1,722
Total operating expense	4,056	1,087	19,792	2,144
Loss from operations	(3,681)	(1,087)	(19,417)	(2,144)
Other income (expense)
Interest income	46	0	110	0
Interest expense	(1)	(67)	(28)	(113)
Loss on warrant issuance	0	0	(5,020)	0
Change in fair value of warrant liabilities	415	0	(16,132)	0
Change in fair value of convertible notes payable	0	57	(109)	2
Total other income (expense)	460	(10)	(21,179)	(111)
Net loss	$ (3,221)	$ (1,097)	$ (40,596)	$ (2,255)
Net loss per share basic and diluted	$ (0.13)	$ (.036)	$ (2.25)	$ (0.73)
Weighted average common shares outstanding for basic and diluted	24,157,217	3,081,546	18,066,764	3,081,546