Summary of Significant Accounting Policies (Schedule of Customers that Account for Greater than 10 Percent of Accounts Receivable) (Details) (USD $)			3 Months Ended		6 Months Ended				6 Months Ended	12 Months Ended		3 Months Ended			6 Months Ended				6 Months Ended	12 Months Ended		3 Months Ended			6 Months Ended				6 Months Ended	12 Months Ended	3 Months Ended		6 Months Ended			6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 GlaxoSmithKline LLC [Member]	Jun. 30, 2013 GlaxoSmithKline LLC [Member]	Jun. 30, 2014 GlaxoSmithKline LLC [Member]	Jun. 30, 2013 GlaxoSmithKline LLC [Member]		Dec. 31, 2013 GlaxoSmithKline LLC [Member]	Jun. 30, 2014 GlaxoSmithKline LLC [Member] Accounts Receivable [Member]	Dec. 31, 2013 GlaxoSmithKline LLC [Member] Accounts Receivable [Member]		Jun. 30, 2014 GlaxoSmithKline Biologicals S.A. [Member]		Jun. 30, 2013 GlaxoSmithKline Biologicals S.A. [Member]	Jun. 30, 2014 GlaxoSmithKline Biologicals S.A. [Member]		Jun. 30, 2013 GlaxoSmithKline Biologicals S.A. [Member]	Dec. 31, 2013 GlaxoSmithKline Biologicals S.A. [Member]	Jun. 30, 2014 GlaxoSmithKline Biologicals S.A. [Member] Accounts Receivable [Member]	Dec. 31, 2013 GlaxoSmithKline Biologicals S.A. [Member] Accounts Receivable [Member]		Jun. 30, 2014 GlaxoSmithKline Entities [Member]		Jun. 30, 2013 GlaxoSmithKline Entities [Member]	Jun. 30, 2014 GlaxoSmithKline Entities [Member]		Jun. 30, 2013 GlaxoSmithKline Entities [Member]	Dec. 31, 2013 GlaxoSmithKline Entities [Member]	Jun. 30, 2014 GlaxoSmithKline Entities [Member] Accounts Receivable [Member]	Dec. 31, 2013 GlaxoSmithKline Entities [Member] Accounts Receivable [Member]	Jun. 30, 2014 Medicare [Member]	Jun. 30, 2013 Medicare [Member]	Jun. 30, 2014 Medicare [Member]	Jun. 30, 2013 Medicare [Member]	Dec. 31, 2013 Medicare [Member]	Jun. 30, 2014 Medicare [Member] Accounts Receivable [Member]	Dec. 31, 2013 Medicare [Member] Accounts Receivable [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Receivable Balance	$ 6,529,550	$ 6,225,923	$ 0		$ 0			$ 597,937				$ 701,797			$ 701,797			$ 544,298				$ 701,797			$ 701,797			$ 1,142,235			$ 2,574,923		$ 2,574,923		$ 2,422,611
Percent of Total Receivables			0.00%	22.00%	0.00%		[1]		0.00%		[2]		[1]	10.00%		[1]	23.00%		11.00%		[2]		[1]	32.00%		[1]	28.00%		11.00%	13.00%	28.00%	20.00%	31.00%	22.00%		39.00%	28.00%

[1] Represents less than 10% of revenue.

[2] Represents less than 10% of accounts receivable.