Subsequent Events (Details) (USD $)				0 Months Ended							0 Months Ended
	Jun. 07, 2012	Mar. 31, 2012	Dec. 31, 2013 Orthotec LLC, Litigation Settlement [Member]	Mar. 15, 2014 Subsequent Event [Member] Orthotec LLC, Litigation Settlement [Member]	Mar. 15, 2014 Subsequent Event [Member] By March 31, 2014 [Member] Orthotec LLC, Litigation Settlement [Member]	Mar. 15, 2014 Subsequent Event [Member] By April 11, 2014 [Member] Orthotec LLC, Litigation Settlement [Member]	Mar. 15, 2014 Subsequent Event [Member] Beginning Fourth Quarter of 2014 [Member] Orthotec LLC, Litigation Settlement [Member] Installment	Mar. 19, 2014 Deerfield [Member] Subsequent Event [Member]	Mar. 17, 2014 Deerfield [Member] Subsequent Event [Member]	Mar. 17, 2014 Maximum [Member] Deerfield [Member] Subsequent Event [Member]	Mar. 15, 2014 Healthpoint Capital [Member] Subsequent Event [Member] Orthotec LLC, Litigation Settlement [Member]
Subsequent Event [Line Items]
Litigation settlement, amount				$ 49,000,000	$ 1,750,000	$ 15,750,000	$ 31,500,000
Length of period after closing a financing for the Company to make additional settlement payment						25 days
Litigation settlement, number of quarterly installments							28
Litigation settlement, quarterly installments, amount							1,100,000
Litigation settlement, contribution by entity involved											5,000,000
Litigation settlement interest rate							7.00%
Litigation settlement interest, quarterly installments, amount							1,100,000
Litigation settlement accrual			46,200,000
Maximum borrowing capacity	50,000,000								50,000,000
Aggregate amount of draw down for working capital									15,000,000
Increment amount of draw down for general corporate purposes									2,500,000.0
Transaction fee as percentage of principal amount									2.50%
Facility agreement stated interest rate									8.75%
Purchase of common stock shares for issuance of warrants		500,000							6,250,000
Exercise price of warrants		2.50						1.39	1.39
Number of common stock called by warrants or rights associated with each disbursement borrowing										10,000,000
Number of days following borrowing request to determine exercise price associated with each disbursement borrowing under Facility Agreement									15 days
Net proceeds from initial draw under Facility Agreement								$ 19,500,000
Number of warrants issued								4,000,000