Summary Of Property and Equipment (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Property Plant And Equipment [Abstract]
Office equipment	$ 505,221	$ 447,580
Leasehold improvements	1,854,052	1,847,378
Laboratory and manufacturing equipment	2,703,030	2,659,621
Field equipment	131,096	131,096
Software	150,451	150,451
Construction in progress	261,633	176,963
Total property and equipment, gross	5,605,483	5,413,089
Less: accumulated depreciation and amortization	(2,724,996)	(2,142,892)
Property and equipment, net	$ 2,880,487	$ 3,270,197