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Shareholders' Equity Option Exercise (Details) (USD $) In Millions, except Share data, unless otherwise specified | 9 Months Ended
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Sep. 30, 2014
Shareholders’ Equity [Abstract] |
Proceeds from Stock Options Exercised | $ 0.3
Stock Option Exercise | 48,987

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

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- Definition Stock Option Exercise + References No definition available. + Details
Name: | nbs_StockOptionExercise
Namespace Prefix: | nbs_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | debit
Period Type: | duration