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Transactions with Olympus Corporation (Details) (USD $) | 0 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended | 13 Months Ended |  | 10 Months Ended | 12 Months Ended | 10 Months Ended | 12 Months Ended |  | 10 Months Ended | 12 Months Ended
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May 14, 2009 | Dec. 31, 2012 | Dec. 31, 2010 | Oct. 31, 2010 | May 31, 2009 | Mar. 31, 2009 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Jun. 30, 2010 | Dec. 31, 2005 | Jun. 30, 2010 | Nov. 04, 2005 | Nov. 04, 2005 Cytori [Member] | Dec. 31, 2012 Cytori [Member] | Dec. 31, 2011 Cytori [Member] | Nov. 04, 2005 Olympus Corporation [Member] | Dec. 31, 2005 Olympus Corporation [Member] | Dec. 31, 2012 Olympus Corporation [Member] | Nov. 04, 2005 Olympus-Cytori, Inc. Joint Venture [Member] | Dec. 31, 2012 Olympus-Cytori, Inc. Joint Venture [Member] | Dec. 31, 2011 Olympus-Cytori, Inc. Joint Venture [Member] | Dec. 31, 2010 Olympus-Cytori, Inc. Joint Venture [Member]
Initial investment by Olympus Corporation in Cytori [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11,000,000 |  |  |  |  |
Common stock issued (in shares) | 1,864,783 | 7,020,000 | 1,428,571 | 4,600,000 | 1,864,783 | 4,771,174 |  |  |  |  |  |  |  |  |  |  |  | 3,300,000 |  | 7,150,000 |  |  |  |  |  | 1,100,000 |  |  |  |  |
Exercisable option to acquire (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,200,000 |  |  |  |  |
Immediately exercisable option to acquire common stock per share (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10 |  |  |  |  |
Difference between proceeds received and fair values of common stock and option liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2,882,000) | (1,992,000) | (2,122,000) |  | 7,811,000 |  |  |  |  |  |  |  |  |  |  |  |
Beneficial Owner, ownership percentage (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.09% |  |  |  |
Formation of the Olympus-Cytori Joint Venture [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Joint Venture Payment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 330,000 |  |  |  |  |  |  |  | 30,000,000 |  |  |  | 0 | 0 | 330,000
Percentage of share in Joint Venture (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  | 50.00% | 50.00% | 50.00%
Joint Venture investment carrying value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 85,000 |  |
Initial payment from the Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Put Option [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Put option, repurchase floor |  | 22,000,000 |  |  |  |  | 22,000,000 |  |  |  |  |  |  |  | 22,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Option liability |  | 2,250,000 |  |  |  |  | 2,250,000 |  |  |  | 1,910,000 |  |  |  | 2,250,000 | 1,910,000 |  |  |  |  | 1,500,000 |  |  |  |  |  |  |  |  |  |
Fair Value Inputs [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected volatility (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 63.20% | 79.40% | 76.07% |  |  |  | 69.10% | 79.40% | 76.07% |
Bankruptcy recovery rate for Cytori (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21.00% | 28.00% | 28.00% |  |  |  |  |  |  |
Bankruptcy threshold |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,780,000 | 12,622,000 | 8,594,000 |  |  |  |  |  |  |
Probability of a change of control event for Cytori (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.04% | 1.54% | 3.33% |  |  |  |  |  |  |
Expected correlation between fair values Cytori and the Joint Venture in the future (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 99.00% | 46.00% | 99.00% |  |  |  |  |  |  |
Risk free interest rate (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.66% | 1.78% | 1.89% |  |  |  |  |  |  |
Olympus-Cytori Joint Venture [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalty cost related to agreement with joint venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 232,000 | 166,000 | 253,000 |  |  |  |  |  |  |  |  |  |  |  | 232,000 | 166,000 | 253,000
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 64,000 | 69,000 |
Amounts due from related party |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 160,000 | 104,000 |
Prepaid insurance |  | 291,000 |  |  |  |  | 291,000 |  |  |  | 234,000 |  |  |  | 291,000 | 234,000 |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 19,000 |
Computer equipment and software, net |  | 2,174,000 |  |  |  |  | 2,174,000 |  |  |  | 1,711,000 |  |  |  | 2,174,000 | 1,711,000 |  |  |  |  |  |  |  |  |  |  |  |  | 566,000 | 797,000 |
Total assets |  | 43,250,000 |  |  |  |  | 43,250,000 |  |  |  | 51,534,000 |  |  |  | 43,250,000 | 51,534,000 |  |  |  |  |  |  |  |  |  |  |  |  | 790,000 | 989,000 |
Liabilities and Stockholders' Equity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000 | 48,000 |
Amounts due to related party |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,000 | 95,000 |
Stockholders' equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 772,000 | 846,000 |
Total liabilities and stockholders' equity |  | 43,250,000 |  |  |  |  | 43,250,000 |  |  |  | 51,534,000 |  |  |  | 43,250,000 | 51,534,000 |  |  |  |  |  |  |  |  |  |  |  |  | 790,000 | 989,000 |
Statements of Operations [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,709,000 | 7,983,000 | 7,664,000 |  |  |  |  |  |  |  |  |  |  |  | 972,000 | 90,000 | 458,000
Cost of product revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,000,000 | 3,837,000 | 3,908,000 |  |  |  |  |  |  |  |  |  |  |  | 892,000 | 87,000 | 458,000
Gross profit |  |  |  |  |  |  | 2,555,000 | 611,000 | 915,000 | 628,000 | 1,132,000 | 1,192,000 | 1,302,000 | 520,000 | 4,709,000 | 4,146,000 | 4,346,000 |  |  |  |  |  |  |  |  |  |  |  | 80,000 | 3,000 | 0
Royalty revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 232,000 | 166,000 | 253,000
Operating expenses [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Research and development |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 14,000
General and administrative [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounting and other corporate services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 96,000 | 164,000 | 88,000
Quality system services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 48,000 | 145,000 | 135,000
Depreciation expense for tooling equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 741,000 | 618,000 | 710,000 |  |  |  |  |  |  |  |  |  |  |  | 231,000 | 230,000 | 130,000
Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,000 | 23,000 | 33,000
Total operating expenses |  |  |  |  |  |  | 8,674,000 | 10,945,000 | 10,304,000 | 8,996,000 | 7,868,000 | 9,020,000 | 5,685,000 | 12,998,000 | 38,919,000 | 35,571,000 | 32,042,000 |  |  |  |  |  |  |  |  |  |  |  | 386,000 | 562,000 | 400,000
Operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (28,418,000) | (29,412,000) | (25,323,000) |  |  |  |  |  |  |  |  |  |  |  | (74,000) | (393,000) | (147,000)
Other income (expense) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,000 | 9,000 | 9,000 |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 1,000
Net income (loss) |  |  |  |  |  |  | (3,823,000) | (11,248,000) | (7,883,000) | (9,325,000) | (6,906,000) | (8,335,000) | (5,138,000) | (12,072,000) | (32,279,000) | (32,451,000) | (27,494,000) |  |  |  |  |  |  |  |  |  |  |  | (74,000) | (393,000) | (146,000)
Reconciliation of net income (loss) to equity loss from investment in joint venture [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  |  | (3,823,000) | (11,248,000) | (7,883,000) | (9,325,000) | (6,906,000) | (8,335,000) | (5,138,000) | (12,072,000) | (32,279,000) | (32,451,000) | (27,494,000) |  |  |  |  |  |  |  |  |  |  |  | (74,000) | (393,000) | (146,000)
Intercompany eliminations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 256,000 | 25,000 | 156,000
Net loss after intercompany eliminations |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (330,000) | (418,000) | (302,000)
Cytori's percentage of interest in joint venture (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  | 50.00% | 50.00% | 50.00%
Cytori's equity loss from investment in joint venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (165,000) | $ (209,000) | $ (151,000) |  |  |  |  |  |  |  |  |  |  |  | $ (165,000) | $ (209,000) | $ (151,000)

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