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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Summary of Significant Accounting Policies [Abstract]
Clinical Services Reimbursement	$ 0.9	$ 0.7	$ 2.9	$ 1.8
Revene Recognition Period for Cryoperservation Process			24 hours

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- Definition

Clinical Services Reimbursement

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- Definition

Revenue Recognition Period for Cryoperservation Process

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