Consolidated Statements of Operations (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Revenues	$ 3,172,279us-gaap_Revenues	$ 4,055,575us-gaap_Revenues
Cost of revenues	3,368,612us-gaap_CostOfRevenue	3,825,444us-gaap_CostOfRevenue
Research and development	6,803,632us-gaap_ResearchAndDevelopmentExpense	4,759,083us-gaap_ResearchAndDevelopmentExpense
Selling, general, and administrative	11,087,899	8,970,016
Total operating costs and expenses	21,260,143us-gaap_OperatingExpenses	17,554,543us-gaap_OperatingExpenses
Operating loss	(18,087,864)us-gaap_OperatingIncomeLoss	(13,498,968)us-gaap_OperatingIncomeLoss
Other expense:
Other expense, net	(546,027)us-gaap_OtherNonoperatingIncomeExpense	(189,551)us-gaap_OtherNonoperatingIncomeExpense
Interest expense	(550,964)us-gaap_InterestExpense	(94,156)us-gaap_InterestExpense
Nonoperating Income (Expense), Total	(1,096,991)us-gaap_NonoperatingIncomeExpense	(283,707)us-gaap_NonoperatingIncomeExpense
Loss before provision for income taxes and noncontrolling interests	(19,184,855)	(13,782,675)
Provision for income taxes	46,633us-gaap_IncomeTaxExpenseBenefit	47,409us-gaap_IncomeTaxExpenseBenefit
Net loss	(19,231,488)us-gaap_ProfitLoss	(13,830,084)us-gaap_ProfitLoss
Less - loss attributable to noncontrolling interests	(44,592)	(148,027)
Net loss attributable to NeoStem, Inc. common stockholders	$ (19,186,896)	$ (13,682,057)
Basic and diluted loss per share attributable to NeoStem, Inc. common stockholders	$ (0.51)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.49)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average common shares outstanding	37,594,894	28,120,847

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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Amount of income (loss) from continuing operations attributable to the noncontrolling interest. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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