Fair Value Measurements Fair value hierarchy the Company’s financial assets and liabilities (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	May 08, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related contingent consideration	$ 22,430,000	$ 11,900,000	$ 9,450,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		90,000,000
Business Combination, Consideration Transferred, Liabilities Incurred	11,890,000
Available-for-sale Securities	665,100		0
Marketable securities	665,112		0
Warrant Derivative Liabilities	0		23,200
Accrued Liabilities and Other Liabilities	22,430,000		9,473,200
Business Combination, Liabilities Arising from Contingencies, Amount Recognized	12,400,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0		0
Marketable securities	0		0
Warrant Derivative Liabilities	0		0
Contingent Consideration Classified as Equity, Fair Value Disclosure	0		0
Accrued Liabilities and Other Liabilities	0		0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	665,100		0
Marketable securities	665,100		0
Warrant Derivative Liabilities	0		0
Contingent Consideration Classified as Equity, Fair Value Disclosure	0		0
Accrued Liabilities and Other Liabilities	0		0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	0		0
Marketable securities	0		0
Warrant Derivative Liabilities	0		23,200
Contingent Consideration Classified as Equity, Fair Value Disclosure	22,430,000		9,450,000
Accrued Liabilities and Other Liabilities	22,430,000		9,473,200
Assets, Total [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	665,100		0
Contingent Consideration Classified as Equity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related contingent consideration	22,430,000		9,450,000
Business Combination, Consideration Transferred, Liabilities Incurred	11,890,000
Amorcyte, LLC [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Acquisition-related contingent consideration	10,100,000		9,500,000
Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrant Derivative Liabilities	0		23,200
Contingent Consideration Classified as Equity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent Consideration Classified as Equity, Fair Value Disclosure	$ 22,430,000		$ 9,450,000