Property and Equipment and Intangible Assets (Schedule of Property and Equipment and Intangible Assets) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,784,141	$ 5,692,784
Less: Accumulated depreciation	(4,092,603)	(3,758,202)
Total property and equipment, net	1,691,538	1,934,582
Intangible assets	1,039,613	995,948
Less: Accumulated amortization	(321,595)	(228,725)
Total intangible assets, net	718,018	767,223
Purchased Software [Member]
Property, Plant and Equipment [Line Items]
Intangible assets	898,252	749,587
Trademarks [Member]
Property, Plant and Equipment [Line Items]
Intangible assets	33,000	33,000
Internally developed software [Member]
Property, Plant and Equipment [Line Items]
Intangible assets	108,361	213,361
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,536,732	4,468,055
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	750,886	736,886
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 496,523	$ 487,843