Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues:
Grant	$ 982,000	$ 859,000
Operating expenses:
Research and development	4,949,000	3,596,000
General and administrative	2,364,000	1,830,000
Total operating expenses	7,313,000	5,426,000
Loss from operations	(6,331,000)	(4,567,000)
Other income (expense):
Interest income	95,000	26,000
Other expense, net	(11,000)	(6,000)
Total other income	84,000	20,000
Net loss	$ (6,247,000)	$ (4,547,000)
Net loss per share, basic and diluted	$ (0.47)	$ (7.10)
Weighted-average common shares outstanding, basic and diluted	13,365,823	640,699