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The Business Principal of consolidation (Details)			9 Months Ended
	Sep. 30, 2014	Mar. 31, 2011	Sep. 30, 2014 NeoStem, Inc. [Member] UNITED STATES	Sep. 30, 2014 NeoStem Therapies, Inc [Member] UNITED STATES	Sep. 30, 2014 Stem Cell Technologies, Inc [Member] UNITED STATES	Sep. 30, 2014 Amorcyte, LLC [Member] UNITED STATES	Sep. 30, 2014 Progenitor Cell Therapy, LLC [Member] UNITED STATES	Sep. 30, 2014 NeoStem Family Storage, LLC [Member] UNITED STATES	Sep. 30, 2014 Athelos Corporation [Member] UNITED STATES	Sep. 30, 2014 PCT Allendale, LLC [Member] UNITED STATES	Sep. 30, 2014 NeoStem Oncology [Member] UNITED STATES
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	90.00%	80.10%		100.00%	100.00%	100.00%	100.00%	100.00%	90.00%	100.00%	100.00%
Minority Interest Ownership Percentage By Parent [String]			Parent  Company

X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	nbs_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Details

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Data Type:	xbrli:stringItemType
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X

- Definition

Subsidiary, Ownership Interest by Parent

+ References

No definition available.

+ Details

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Namespace Prefix:	nbs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant