Consolidated Statements of Operations $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares	Sep. 30, 2019 USD ($) $ / shares shares	Sep. 30, 2020 USD ($) $ / shares shares	Sep. 30, 2019 USD ($) $ / shares shares
Operating expenses:
Research and development	$ 1,040	$ 1,459	$ 3,031	$ 4,285
General and administrative	1,243	1,273	3,875	4,473
Total operating expenses	2,283	2,732	6,906	8,758
Operating loss	(2,283)	(2,732)	(6,906)	(8,758)
Other income / (expense):
Interest income / (expense), net	2	51	20	222
Other income	2	2	4	78
Other income / (expense), net	4	53	24	300
Net loss	$ (2,279)	$ (2,679)	$ (6,882)	$ (8,458)
Net loss per share, basic and diluted (in dollars per share) | $ / shares	$ (0.47)	$ (8.63)	$ (2.00)	$ (27.25)
Weighted average number of common shares outstanding, basic and diluted (In Shares) | shares	4,875,534	310,398	3,440,419	310,375