Condensed Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating expenses:
Research and development	$ 1,644	$ 2,234	$ 5,651	$ 6,391
General and administrative	1,174	486	2,537	1,069
Total operating expenses	2,818	2,720	8,188	7,460
Operating Income (Loss), Total	(2,818)	(2,720)	(8,188)	(7,460)
Change in fair value of warrant liability	(5,549)		(5,549)
Interest expense, net	(10)	(17)	(27)	(62)
Total other expenses	(5,559)	(17)	(5,576)	(62)
Net loss	$ (8,377)	$ (2,737)	$ (13,764)	$ (7,522)
Per share information:
Net loss per share of common stock, basic and diluted (in dollars per share)	$ (7.52)	$ (2.50)	$ (12.44)	$ (6.88)
Weighted-average common shares outstanding, basic and diluted (in shares)	1,114,427	1,093,028	1,106,039	1,092,630