The Company	12 Months Ended
Dec. 31, 2011
The Company [Abstract]
Nature of Operations [Text Block]	The Company NeoStem, Inc. (“NeoStem” or the “Company”) was incorporated under the laws of the State of Delaware in September 1980 under the name Fidelity Medical Services, Inc. The Company’s corporate headquarters are located at 420 Lexington Avenue, Suite 450, New York, NY 10170. The Company’s telephone number is (212) 584-4180 and its website address is www.neostem.com. NeoStem, Inc. is an international biopharmaceutical company. In 2011, we operated our business in three reportable segments: (i) Cell Therapy — United States; (ii) Regenerative Medicine — China; and (iii) Pharmaceutical Manufacturing — China. Effective March 31, 2012, we committed to discontinue operations in the Regenerative Medicine - China reportable segment, and on June 18, 2012, we also announced an agreement to sell our 51% interest in Suzhou Erye, which represented the operations in our Pharmaceutical Manufacturing - China segment. We have recast certain information to classify the results of operations, assets and liabilities of the Pharmaceutical Manufacturing - China and Regenerative Medicine - China segments as discontinued operations (see Note 11). As a result, the Company currently operates in a single reporting segment. The Company is focused on the development of proprietary cellular therapies in cardiovascular disease, immunology and regenerative medicine and becoming a single source for collection, storage, manufacturing, therapeutic development and transportation of cells for cell based medicine and regenerative science. The Company is also a provider of adult stem cell collection, processing and storage services in the U.S., enabling healthy individuals to donate and store their stem cells for personal therapeutic use. In addition, the Company collects and stores cord blood cells of newborns which help to ensure a supply of autologous stem cells for the child should they be needed for future medical treatment. The Company strengthened its expertise in cellular therapies with its January 19, 2011 acquisition of Progenitor Cell Therapy, LLC, a Delaware limited liability company (“PCT”). PCT is engaged in a wide range of services in the cell therapy market for the treatment of human disease, including, but not limited to contract manufacturing, product and process development, regulatory consulting, product characterization and comparability, and storage, distribution, manufacturing and transportation of cell therapy products. PCT’s legacy business relationships also afford NeoStem introductions to innovative therapeutic programs. In March 2011, PCT’s wholly owned subsidiary, Athelos, Inc. (Athelos), acquired rights and technology for a T-cell based immunomodulatory therapeutic in exchange for an approximate 20.00% interest in Athelos. The Company further strengthened its breadth in cellular therapies through its October 17, 2011 acquisition of Amorcyte, Inc. Amorcyte is a development stage cell therapy company focusing on novel treatments for cardiovascular disease. Amorcyte’s lead product candidate is AMR-001. In January 2012, Amorcyte enrolled its first patient in the PreSERVE Phase 2 trial to investigate AMR-001’s ability to preserve heart function after a heart attack. The Company views the PCT and Amorcyte acquisitions as fundamental to building a foundation in achieving its strategic mission of capturing the paradigm shift to cell therapy.

The Company

NeoStem, Inc. (“NeoStem” or the “Company”) was incorporated under the laws of the State of Delaware in September 1980 under the name Fidelity Medical Services, Inc. The Company’s corporate headquarters are located at 420 Lexington Avenue, Suite 450, New York, NY 10170. The Company’s telephone number is (212) 584-4180 and its website address is www.neostem.com.

NeoStem, Inc. is an international biopharmaceutical company. In 2011, we operated our business in three reportable segments: (i) Cell Therapy — United States; (ii) Regenerative Medicine — China; and (iii) Pharmaceutical Manufacturing — China. Effective March 31, 2012, we committed to discontinue operations in the Regenerative Medicine - China reportable segment, and on June 18, 2012, we also announced an agreement to sell our 51% interest in Suzhou Erye, which represented the operations in our Pharmaceutical Manufacturing - China segment. We have recast certain information to classify the results of operations, assets and liabilities of the Pharmaceutical Manufacturing - China and Regenerative Medicine - China segments as discontinued operations (see Note 11). As a result, the Company currently operates in a single reporting segment.

The Company is focused on the development of proprietary cellular therapies in cardiovascular disease, immunology and regenerative medicine and becoming a single source for collection, storage, manufacturing, therapeutic development and transportation of cells for cell based medicine and regenerative science. The Company is also a provider of adult stem cell collection, processing and storage services in the U.S., enabling healthy individuals to donate and store their stem cells for personal therapeutic use. In addition, the Company collects and stores cord blood cells of newborns which help to ensure a supply of autologous stem cells for the child should they be needed for future medical treatment.

The Company strengthened its expertise in cellular therapies with its January 19, 2011 acquisition of Progenitor Cell Therapy, LLC, a Delaware limited liability company (“PCT”). PCT is engaged in a wide range of services in the cell therapy market for the treatment of human disease, including, but not limited to contract manufacturing, product and process development, regulatory consulting, product characterization and comparability, and storage, distribution, manufacturing and transportation of cell therapy products. PCT’s legacy business relationships also afford NeoStem introductions to innovative therapeutic programs.

In March 2011, PCT’s wholly owned subsidiary, Athelos, Inc. (Athelos), acquired rights and technology for a T-cell based immunomodulatory therapeutic in exchange for an approximate 20.00% interest in Athelos.

The Company further strengthened its breadth in cellular therapies through its October 17, 2011 acquisition of Amorcyte, Inc. Amorcyte is a development stage cell therapy company focusing on novel treatments for cardiovascular disease. Amorcyte’s lead product candidate is AMR-001. In January 2012, Amorcyte enrolled its first patient in the PreSERVE Phase 2 trial to investigate AMR-001’s ability to preserve heart function after a heart attack.

The Company views the PCT and Amorcyte acquisitions as fundamental to building a foundation in achieving its strategic mission of capturing the paradigm shift to cell therapy.