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v2.4.1.9

The Business (Details) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
The Company [Line Items] |  |
Subsidiary, Ownership Interest by Parent | 96.60%nbs_SubsidiaryOwnershipInterestByParent |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 3.40%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners |
Change in Ownership in Subsidiary | $ 0 nbs_ChangeinOwnershipinSubsidiary | $ 0 nbs_ChangeinOwnershipinSubsidiary
Noncontrolling Interest [Member] |  |
The Company [Line Items] |  |
Change in Ownership in Subsidiary | $ 50,537 nbs_ChangeinOwnershipinSubsidiary / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | $ 86,617 nbs_ChangeinOwnershipinSubsidiary / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember
NeoStem, Inc. [Member] |  |
The Company [Line Items] |  |
Subsidiary, Ownership Interest by Parent | 100.00%nbs_SubsidiaryOwnershipInterestByParent / dei_LegalEntityAxis = nbs_NeostemIncMember |

X
- Definition Change in Ownership in Subsidiary + References No definition available. + Details
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Namespace Prefix: | nbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: | nbs_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition Subsidiary, Ownership Interest by Parent + References No definition available. + Details
Name: | nbs_SubsidiaryOwnershipInterestByParent
Namespace Prefix: | nbs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | dei_LegalEntityAxis=nbs_NeostemIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |