Property and Equipment and Intangible Assets (Schedule of Property and Equipment and Intangible Assets) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,692,784	$ 4,281,497
Less: Accumulated depreciation	(3,758,202)	(3,258,299)
Total property and equipment, net	1,934,582	1,023,198
Intangible assets	995,948	671,061
Less: Accumulated amortization	(228,725)	(95,652)
Total intangible assets, net	767,223	575,409
Purchased Software [Member]
Property, Plant and Equipment [Line Items]
Intangible assets	749,587	562,699
Trademarks [Member]
Property, Plant and Equipment [Line Items]
Intangible assets	33,000	0
Internally developed software [Member]
Property, Plant and Equipment [Line Items]
Intangible assets	213,361	108,362
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,468,055	3,315,812
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	736,886	660,626
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 487,843	$ 305,059