Consolidated Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating expenses
Research and development	$ 1,494,000	$ 1,464,000
General and administrative	2,112,000	1,591,000
Total operating expenses	3,606,000	3,055,000
Loss from operations	(3,606,000)	(3,055,000)
Other income (expense)
Change in fair value of derivative liabilities	(11,000)	(79,000)
Total other income (expense), net	(11,000)	(79,000)
Net loss	$ (3,617,000)	$ (3,134,000)
Per share information:
Net loss per share, basic and diluted	$ (0.11)	$ (0.24)
Weighted average shares outstanding, basic and diluted	32,390,144	13,298,159