Consolidated Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating expenses
Research and development	$ 2,750,000	$ 2,061,000
General and administrative	2,171,000	1,380,000
Loss from operations	4,921,000	3,441,000
Other income (expense)
Interest income	2,000	48,000
Interest expense	(159,000)	(306,000)
Change in fair value of derivative liabilities		(40,000)
Total other income (expense), net	(157,000)	(298,000)
Net loss	$ (5,078,000)	$ (3,739,000)
Per share information:
Net loss per share, basic and diluted (in dollars per share)	$ (0.49)	$ (0.80)
Weighted average shares outstanding, basic and diluted	10,451,746	4,652,777