The Business Principal of consolidation (Details)	Jun. 30, 2015
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	96.90%
NeoStem, Inc. [Member]
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	100.00%
NeoStem Therapies, Inc [Member] | UNITED STATES
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	100.00%
Stem Cell Technologies, Inc [Member] | UNITED STATES
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	100.00%
Amorcyte, LLC [Member] | UNITED STATES
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	100.00%
Progenitor Cell Therapy, LLC [Member] | UNITED STATES
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	100.00%
NeoStem Family Storage, LLC [Member] | UNITED STATES
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	100.00%
PCT Allendale, LLC [Member] | UNITED STATES
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	100.00%
NeoStem Oncology [Member] | UNITED STATES
Schedule of Subisidiary [Line Items]
Subsidiary, Ownership Interest by Parent	100.00%