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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Revenues $ 22,056,768 $ 19,590,958
Cost of revenues 16,321,520 14,276,501
Gross profit 5,735,248 5,314,457
Research and development 2,714,507 2,755,192
Selling, general, and administrative 9,452,200 9,634,895
Operating Expenses 12,166,707 12,390,087
Operating loss (6,431,459) (7,075,630)
Other income (expense):    
Other income (expense), net 166,703 (250,437)
Interest expense (1,096,133) (852,243)
Nonoperating Income (Expense), Total (929,430) (1,102,680)
Loss from continuing operations before provision for income taxes and noncontrolling interests (7,360,889) (8,178,310)
Provision for income taxes 122,261 592,648
Net loss from continuing operations (7,483,150) (8,770,958)
Loss from discontinued operations - net (1,723,718) (928,800)
Net loss (9,206,868) (9,699,758)
Less - net income attributable to noncontrolling interests 141,265 473,233
Net loss attributable to NeoStem, Inc. (9,348,133) (10,172,991)
Preferred dividends 107,844 186,633
Net loss attributable to NeoStem, Inc. common shareholders $ (9,455,977) $ (10,359,624)
Basic and diluted (loss) per share attributable to:    
Continuing operations $ (0.07) $ (0.12)
Discontinued operations $ (0.02) $ (0.01)
NeoStem, Inc. common shareholders $ (0.08) $ (0.14)
Weighted average common shares outstanding 111,806,949 73,654,165