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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Clinical Services Reimbursement	$ 3.5	$ 2.6
Revene Recognition Period for Cryoperservation Process	24 hours

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- Definition

Clinical Services Reimbursement

+ References

No definition available.

+ Details

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Namespace Prefix:	nbs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- Definition

Revenue Recognition Period for Cryoperservation Process

+ References

No definition available.

+ Details

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Namespace Prefix:	nbs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration