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Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Jun. 30, 2012 | Sep. 30, 2013
Summary of Significant Accounting Policies [Abstract] |  |  |  |
Clinical Services Reimbursement | $ 0.6 | $ 0.9 | $ 2.9 | $ 1.4

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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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- Details
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Namespace Prefix: | nbs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration