License and Supply Agreements (Details) (USD $)	3 Months Ended		9 Months Ended		1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Jan. 31, 2010 Distribution Agreement with Parcell Spine, LLC [Member]	Sep. 30, 2013 Distribution Agreement with Parcell Spine, LLC [Member]	Sep. 30, 2010 Distribution Agreement with Parcell Spine, LLC [Member]	Sep. 30, 2013 Distribution Agreement with Parcell Spine, LLC [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Cash Payments					$ 500,000		$ 500,000
Milestone Payments					1,000,000
Issuance Of Common Stock					1,000,000
Addition To Intangible Assets							1,500,000
Number Of Shares Of Common Stock For Issuance							476,190
Amortization of acquired intangible assets	741,000	491,000	2,255,000	1,574,000		900,000		900,000
Provision for excess and obsolete inventory			$ 10,842,000	$ 3,980,000		$ 2,600,000		$ 2,600,000