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Transactions with Olympus Corporation (Details) (USD $)
 1 Months Ended 12 Months Ended 10 Months Ended 12 Months Ended 12 Months Ended 0 Months Ended 3 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Oct. 31, 2010
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2005
Nov. 04, 2005
Nov. 04, 2005
Olympus Corporation [Member]
Dec. 31, 2005
Olympus Corporation [Member]
Dec. 31, 2012
Olympus Corporation [Member]
Dec. 31, 2013
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]
May 27, 2013
Acquired Olympus Ownership [Member]
Sep. 30, 2013
Acquired Olympus Ownership [Member]
Dec. 31, 2013
Acquired Olympus Ownership [Member]
May 08, 2013
Acquired Olympus Ownership [Member]
May 27, 2013
Acquired Olympus Ownership [Member]
Minimum [Member]
May 27, 2013
Acquired Olympus Ownership [Member]
Maximum [Member]
Dec. 31, 2013
Acquired Olympus Ownership [Member]
Developed Technology [Member]
Business Acquisition [Line Items]                                        
Equity interest acquired (in hundredths)                           50.00%            
Acquisition agreement date                           May 27, 2013            
Remeasurement gain   $ 4,892,000 $ 0 $ 0                       $ 4,892,000        
Payment obligation under termination agreement                                   4,500,000 16,000,000  
Payment installment period                                   1 year 6 years  
Installment payment amount description                           Installment payments will be calculated quarterly based on 5% of Cytori's gross sales receipts for all products sold. If Cytori receives an aggregate $35,000,000 in cash through strategic or financing arrangements during the first year of the Termination Agreement, Cytori will pay $4,500,000 upon request of Olympus as full and complete consideration under the Agreement.            
Gross sales receipts (in hundredths)                           5.00%            
Limit for cash through strategic or financing arrangements                           35,000,000            
Required payment for acquisition                           4,500,000            
Inputs used in valuation of acquired intangible assets [Abstract]                                        
Useful life (in years)                                       7 years
Estimated fair value                                 9,394,000     9,394,000
Discount rate used to value intangible assets (in hundredths)                                   9.75% 12.75%  
Fair value of purchase consideration                           4,928,000            
Unamortized discount resulting from fair value calculation of purchase obligations                           1,072,000            
Weighted average expected term for amortization of purchase obligation                           1 year 9 months 18 days            
Year-to-date equity loss from investment in Joint Venture                           48,000            
Gain on remeasurement of purchase obligation                             600,000          
Fair value of the assets acquired and liabilities assumed at the date of acquisition [Abstract]                                        
Current assets                                 236,000      
Property and equipment                                 260,000      
Intangible assets                                 9,394,000     9,394,000
Total assets acquired                                 9,890,000      
Accrued and other current liabilities                                 (33,000)      
Total fair value of the Joint Venture                                 9,857,000      
Initial investment by Olympus Corporation in Cytori [Abstract]                                        
Related party transactions               11,000,000                        
Common stock issued (in shares) 4,600,000             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   (638,000) (2,882,000) (1,992,000) 7,811,000                              
Beneficial Owner, ownership percentage (in hundredths)                 6.09%                      
Formation of the Olympus-Cytori Joint Venture [Abstract]                                        
Joint Venture Payment   221,000 0 0     30,000,000       0 0 330,000              
Percentage of share in Joint Venture (in hundredths)   50.00%         50.00%       50.00%                  
Joint Venture investment carrying value                     85,000                  
Initial payment from the Joint Venture     11,000,000                                  
Put/Calls and Guarantees [Abstract]                                        
Put option, repurchase floor     22,000,000                                  
Option liability     2,250,000 1,910,000   1,500,000                            
Olympus-Cytori Joint Venture [Abstract]                                        
Royalty cost related to agreement with joint venture                   $ 60,000 $ 232,000 $ 166,000