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Consolidated Statements of Equity (USD $) | Total | Cash And Services | Charitable contribution | Series C Preferred Stock | Series E Preferred Stock | PCT Merger | Amorcyte Merger | Series B Convertible Preferred Stock | Common Stock | Common Stock Cash And Services | Common Stock Charitable contribution | Common Stock PCT Merger | Common Stock Amorcyte Merger | Additional Paid in Capital | Additional Paid in Capital Cash And Services | Additional Paid in Capital Charitable contribution | Additional Paid in Capital PCT Merger | Additional Paid in Capital Amorcyte Merger | Accumulated Other Comprehensive Income | Accumulated Deficit | Accumulated Deficit Series C Preferred Stock | Accumulated Deficit Series E Preferred Stock | Total NeoStem, Inc. Shareholders' Equity | Total NeoStem, Inc. Shareholders' Equity Cash And Services | Total NeoStem, Inc. Shareholders' Equity Charitable contribution | Total NeoStem, Inc. Shareholders' Equity Series C Preferred Stock | Total NeoStem, Inc. Shareholders' Equity Series E Preferred Stock | Total NeoStem, Inc. Shareholders' Equity PCT Merger | Total NeoStem, Inc. Shareholders' Equity Amorcyte Merger | Non-Controlling Interest in Subsidiaries
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Beginning Balance at Dec. 31, 2009 | $ 57,832,377 |  |  |  |  |  |  | $ 100 | $ 37,193 |  |  |  |  | $ 95,709,491 |  |  |  |  | $ (56,504) | $ (71,776,951) |  |  | $ 23,913,329 |  |  |  |  |  |  | $ 33,919,048
Beginning Balance (in shares) at Dec. 31, 2009 |  |  |  |  |  |  |  | 10,000 | 37,193,491 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | (19,397,016) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (23,305,706) |  |  | (23,305,706) |  |  |  |  |  |  | 3,908,690
Foreign currency translation | 2,835,570 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,835,570 |  |  |  | 2,835,570 |  |  |  |  |  |  |
Total comprehensive income (loss) | (16,561,446) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (20,470,136) |  |  |  |  |  |  | 3,908,690
Exercise of stock options (in shares) |  |  |  |  |  |  |  |  | 90,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of stock options | 140,100 |  |  |  |  |  |  |  | 90 |  |  |  |  | 140,010 |  |  |  |  |  |  |  |  | 140,100 |  |  |  |  |  |  |
Exercise of warrants (in shares) |  |  |  |  |  |  |  |  | 2,025,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of warrants | 2,961,750 |  |  |  |  |  |  |  | 2,025 |  |  |  |  | 2,959,725 |  |  |  |  |  |  |  |  | 2,961,750 |  |  |  |  |  |  |
Share-based compensation (in shares) |  |  |  |  |  |  |  |  | 349,517 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation | 7,564,993 |  |  |  |  |  |  |  | 350 |  |  |  |  | 7,564,643 |  |  |  |  |  |  |  |  | 7,564,993 |  |  |  |  |  |  |
Shares issued (in shares) |  |  |  |  |  |  |  |  |  | 15,326,998 | 150,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued |  | 21,425,538 | 298,500 |  |  |  |  |  |  | 15,327 | 150 |  |  |  | 21,410,211 | 298,350 |  |  |  |  |  |  |  | 21,425,538 | 298,500 |  |  |  |  |
Conversion of Series C Preferred (in shares) |  |  |  |  |  |  |  |  | 9,086,124 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of Series C Preferred | 13,720,048 |  |  |  |  |  |  |  | 9,086 |  |  |  |  | 13,710,962 |  |  |  |  |  |  |  |  | 13,720,048 |  |  |  |  |  |  |
Receipt of treasury shares | (656,278) |  |  |  |  |  |  |  | (408) |  |  |  |  | (655,870) |  |  |  |  |  |  |  |  | (656,278) |  |  |  |  |  |  |
Dividends on Preferred |  |  |  | (153,469) | (84,494) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (153,469) | (84,494) |  |  |  | (153,469) | (84,494) |  |  |
Ending Balance at Dec. 31, 2010 | 86,487,619 |  |  |  |  |  |  | 100 | 63,813 |  |  |  |  | 141,137,522 |  |  |  |  | 2,779,066 | (95,320,620) |  |  | 48,659,881 |  |  |  |  |  |  | 37,827,738
Ending Balance (in shares) at Dec. 31, 2010 |  |  |  |  |  |  |  | 10,000 | 64,221,130 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | (56,582,857) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (47,134,469) |  |  | (47,134,469) |  |  |  |  |  |  | (9,448,388)
Foreign currency translation | 2,596,987 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,373,277 |  |  |  | 1,373,277 |  |  |  |  |  |  | 1,223,710
Total comprehensive income (loss) | (53,985,870) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (45,761,192) |  |  |  |  |  |  | (8,224,678)
Exercise of stock options (in shares) |  |  |  |  |  |  |  |  | 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of stock options | 7,100 |  |  |  |  |  |  |  | 5 |  |  |  |  | 7,095 |  |  |  |  |  |  |  |  | 7,100 |  |  |  |  |  |  |
Share-based compensation (in shares) |  |  |  |  |  |  |  |  | 3,824,018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation | 10,266,023 |  |  |  |  |  |  |  | 3,824 |  |  |  |  | 10,262,199 |  |  |  |  |  |  |  |  | 10,266,023 |  |  |  |  |  |  |
Shares issued (in shares) |  |  |  |  |  |  |  |  |  | 19,678,224 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued |  | 21,152,682 | 607,363 |  |  |  |  |  |  | 19,678 | 408 |  |  |  | 21,133,004 | 606,955 |  |  |  |  |  |  |  | 21,152,682 | 607,363 |  |  |  |  |
Repayment of Series E Preferred Principal and Dividends (in shares) |  |  |  |  |  |  |  |  | 5,157,732 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of Series E Preferred Principal and Dividends | 3,620,300 |  |  |  |  |  |  |  | 5,158 |  |  |  |  | 4,254,907 |  |  |  |  |  | (639,765) |  |  | 3,620,300 |  |  |  |  |  |  |
Dividends to related party | (11,726,099) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (11,726,099)
Technology contributed to Athelos by Non-Controlling Interest | 1,150,000 |  |  |  |  |  |  |  |  |  |  |  |  | 920,000 |  |  |  |  |  |  |  |  | 920,000 |  |  |  |  |  |  | 230,000
Shares issued in Merger (in shares) |  |  |  |  |  |  |  |  |  |  |  | 10,600,000 | 5,843,483 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issued in Merger |  |  |  |  |  | 17,200,000 | 5,353,400 |  |  |  |  | 10,600 | 5,844 |  |  |  | 17,189,400 | 5,347,556 |  |  |  |  |  |  |  |  |  | 17,200,000 | 5,353,400 |
Ending Balance at Dec. 31, 2011 | $ 80,132,518 |  |  |  |  |  |  | $ 100 | $ 109,330 |  |  |  |  | $ 200,858,638 |  |  |  |  | $ 4,152,343 | $ (143,094,854) |  |  | $ 62,025,557 |  |  |  |  |  |  | $ 18,106,961
Ending Balance (in shares) at Dec. 31, 2011 |  |  |  |  |  |  |  | 10,000 | 109,329,587 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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