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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Clinical Services Reimbursement	$ 0.8	$ 0.6	$ 2.0	$ 1.1

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- Definition

Clinical Services Reimbursement

+ References

No definition available.

+ Details

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