Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Grant revenue	$ 3,280,000	$ 212,000	$ 12,929,000	$ 546,000
Licensing and collaboration revenue	4,165,000	0	33,711,000	0
Revenues	7,445,000	212,000	46,640,000	546,000
Operating expenses:
Research and development	16,130,000	6,475,000	34,111,000	12,863,000
General and administrative	7,257,000	2,863,000	15,623,000	6,114,000
Total operating expenses	23,387,000	9,338,000	49,734,000	18,977,000
Loss from operations	(15,942,000)	(9,126,000)	(3,094,000)	(18,431,000)
Other income and expense:
Miscellaneous income	0	(50,000)	0	0
Interest income	26,000	21,000	43,000	45,000
Interest expense	(4,000)	(9,000)	(10,000)	(13,000)
Other (expense) income, net	22,000	(38,000)	33,000	32,000
Net loss before taxes	(15,920,000)	(9,164,000)	(3,061,000)	(18,399,000)
Income tax benefit	1,829,000	0	160,000	0
Net loss	$ (14,091,000)	$ (9,164,000)	$ (2,901,000)	$ (18,399,000)
Basic and diluted net loss per share	$ (0.49)	$ (0.33)	$ (0.10)	$ (0.66)
Basic and diluted average shares outstanding	28,661,588	27,876,652	28,408,474	27,742,029