License and Collaborative Agreements (Details) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		1 Months Ended			3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended		3 Months Ended			6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Licensing Agreements [Member] University of Southern California [Member]	Jun. 30, 2013 Licensing Agreements [Member] University of Southern California [Member]	Jun. 30, 2014 Licensing Agreements [Member] University of Southern California [Member]	Jun. 30, 2013 Licensing Agreements [Member] University of Southern California [Member]	Jun. 30, 2014 Licensing Agreements [Member] Roche Molecular Systems [Member]	Jun. 30, 2013 Licensing Agreements [Member] Roche Molecular Systems [Member]	Jun. 30, 2014 Licensing Agreements [Member] Roche Molecular Systems [Member]	Jun. 30, 2013 Licensing Agreements [Member] Roche Molecular Systems [Member]	Dec. 31, 2013 Licensing Agreements [Member] Glaxo, Smith, Kline [Member]	May 31, 2013 Licensing Agreements [Member] Glaxo, Smith, Kline [Member]	Jul. 31, 2012 Licensing Agreements [Member] Glaxo, Smith, Kline [Member]	Jun. 30, 2014 Service Agreements [Member] Glaxo, Smith, Kline [Member]	Jun. 30, 2013 Service Agreements [Member] Glaxo, Smith, Kline [Member]	Jun. 30, 2014 Service Agreements [Member] Glaxo, Smith, Kline [Member]		Jun. 30, 2013 Service Agreements [Member] Glaxo, Smith, Kline [Member]	Jun. 30, 2014 Service Agreements [Member] Taiho Pharmaceutical Co., Ltd. [Member]	Jun. 30, 2013 Service Agreements [Member] Taiho Pharmaceutical Co., Ltd. [Member]	Jun. 30, 2014 Service Agreements [Member] Taiho Pharmaceutical Co., Ltd. [Member]	Jun. 30, 2013 Service Agreements [Member] Taiho Pharmaceutical Co., Ltd. [Member]	Jun. 30, 2014 Service Agreements [Member] GlaxoSmithKline LLC [Member]	Jun. 30, 2014 Service Agreements [Member] GSK Bio [Member]	Jun. 30, 2013 Service Agreements [Member] GSK Bio [Member]	Jun. 30, 2014 Service Agreements [Member] GSK Bio [Member]	Jun. 30, 2013 Service Agreements [Member] GSK Bio [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Royalty Expense					$ 10,449	$ 86,908	$ 21,410	$ 191,014	$ 113,704	$ 84,362	$ 158,077	$ 174,507
Revenue, Net, Total	4,281,235	5,313,914	8,176,169	10,938,105												0	2,814	0		2,814	0	306,260	0	340,180	0	392,875	1,176,361	721,155	2,532,745
Revenue Recognition, Milestone Method, Revenue Recognized													$ 500,000	$ 500,000	$ 500,000
Collaborative Agreement, Additional Period For Renewal																		1 year	[1]
Collaborative Agreement, Termination Notice Period																												90 days

[1] Represents less than 10% of accounts receivable