Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating expenses:
Research and development	$ 1,012	$ 1,051
General and administrative	1,212	1,377
Total operating expenses	2,224	2,428
Operating loss	(2,224)	(2,428)
Other income:
Interest income	1	14
Other income	1	14
Net loss	$ (2,223)	$ (2,414)
Net loss per share, basic and diluted (in dollars per share)	$ (0.08)	$ (2.47)
Weighted average number of common shares outstanding, basic and diluted (In Shares)	29,473,621	976,121