Subsequent Events (Details) (USD $)	9 Months Ended		0 Months Ended			1 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Oct. 06, 2014 Subsequent event	Oct. 02, 2014 Subsequent event Baxter Healthcare Organization	Oct. 02, 2014 Subsequent event Baxter Healthcare Organization	Oct. 28, 2014 Subsequent event Baxter Healthcare Organization
Subsequent Events
Proceeds from Warrant Exercises	$ (429,750)		$ 8,000,000
Warrants exercised (in shares)	838,071	983,071	838,071
Warrants exercise price (in dollars per share)			$ 9.55
Common stock, shares issued (in shares)	41,015,392	40,110,661	838,071		1,316,944
Proceeds from issuance of private placement				15,000,000
Shares issued, price (in dollars per share)					$ 11.39
Shares issued, price above market close (in dollars per share)					$ 2.21
Agreement prohibiting transfer shares period, minimum						1 year
Agreement prohibiting short sell shares period, minimum						3 years
Agreement period before standstill provisions are effective						1 year
Agreement standstill provisions ownership percent, maximum						4.90%
Distribution agreement term					10 years
Upfront fee					20,000,000
Agreement termination notice period					270 days
Agreement termination significant price increase notice period					45 days
Agreement termination limited noncompete period					2 years
Agreement Refund Trigger Event repayment percent first criteria					50.00%
Agreement Refund Trigger Event repayment percent second criteria					33.00%
Agreement Refund Trigger Event repayment percent third criteria					25.00%
Agreement property infringement repayment amount first criteria					10,000,000
Agreement property infringement repayment amount second criteria					6,600,000
Agreement prepayment secured long-term indebtedness period					180 days
Facility Fee					10,000,000
Facility Fee reduction period					12 months
Agreement extension period					5 years
Agreement extension period two					5 years
Extension fee					$ 7,500,000