Property and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Gross	$ 8,457,450	$ 7,755,963
Less accumulated depreciation	(5,252,373)	(4,357,565)
Property, Plant and Equipment, Net	3,205,077	3,398,398
Depreciation, Depletion and Amortization [Abstract]
Depreciation	$ 919,809	886,710	$ 857,055
Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Useful Life	7 years
Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Useful Life	3 years
Laboratory Equipment [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Gross	$ 6,666,506	6,022,585
Property, Plant and Equipment, Useful Life	7 years
Office Equipment [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Gross	$ 1,347,768	1,271,847
Office Equipment [Member] | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Useful Life	7 years
Office Equipment [Member] | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Useful Life	3 years
Leasehold Improvements [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Gross	$ 424,176	408,153
Property, Plant and Equipment, Useful Life	7 years
Assets not in service
Property, Plant and Equipment, Net, by Type [Abstract]
Property, Plant and Equipment, Gross	$ 19,000	$ 53,378