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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Summary of Significant Accounting Policies [Abstract]
Clinical Services Reimbursement	$ 0.4	$ 1.1
Revene Recognition Period for Cryoperservation Process			24 hours

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- Definition

Clinical Services Reimbursement

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No definition available.

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- Definition

Revenue Recognition Period for Cryoperservation Process

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No definition available.

+ Details

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Period Type:	duration

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