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Transactions with Olympus Corporation (Details) (USD $) | 1 Months Ended | 12 Months Ended | 0 Months Ended |
--- | --- | --- | --- | ---
Oct. 31, 2010 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | May 08, 2014 | May 27, 2013 | May 08, 2013
Acquisition of Olympus' Interest in the Joint Venture [Abstract] |  |  |  |  |  |  |
Remeasurement gain |  | $ 0 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain | $ 4,892,000 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain | $ 0 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain |  |  |
Inputs used in valuation of acquired intangible assets [Abstract] |  |  |  |  |  |  |
Useful life (in years) |  | 7 years |  | 10 years |  |  |
Total payments to be made |  |  | 5,000,000 us-gaap_BusinessCombinationConsiderationTransferred1 |  |  |  |
Payments totaling |  | 2,700,000 us-gaap_PaymentsForPreviousAcquisition |  |  |  |  |
Remaining payment obligation |  | 3,300,000 us-gaap_PaymentsForProceedsFromPreviousAcquisition |  |  |  |  |
Initial investment by Olympus Corporation in Cytori [Abstract] |  |  |  |  |  |  |
Common stock issued (in shares) | 4,600,000 us-gaap_StockIssuedDuringPeriodSharesNewIssues |  |  |  |  |  |
Difference between proceeds received and fair values of common stock and option liability |  | 0 cytx_IncreaseDecreaseDeferredRevenueRelatedParty | (638,000)cytx_IncreaseDecreaseDeferredRevenueRelatedParty | (2,882,000)cytx_IncreaseDecreaseDeferredRevenueRelatedParty |  |  |
Formation of the Olympus-Cytori Joint Venture [Abstract] |  |  |  |  |  |  |
Joint Venture Payment |  | 2,262,000 us-gaap_PaymentsToAcquireInterestInJointVenture | 221,000 us-gaap_PaymentsToAcquireInterestInJointVenture | 0 us-gaap_PaymentsToAcquireInterestInJointVenture |  |  |
Percentage of share in Joint Venture (in hundredths) |  | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage |  |  |  |  |
Put/Calls and Guarantees [Abstract] |  |  |  |  |  |  |
Put option, repurchase floor |  |  |  | 22,000,000,000 cytx_PutOptionRepurchaseFloor |  |  |
Option liability |  |  | 0 us-gaap_BeneficialInterest | 2,250,000 us-gaap_BeneficialInterest |  |  |
Fair Value Inputs [Abstract] |  |  |  |  |  |  |
Expected volatility (in hundredths) |  | 90.00%us-gaap_FairValueAssumptionsExpectedVolatilityRate |  |  |  |  |
Risk free interest rate (in hundredths) |  | 1.65%us-gaap_FairValueAssumptionsRiskFreeInterestRate |  |  |  |  |
Acquired Olympus Ownership [Member] |  |  |  |  |  |  |
Acquisition of Olympus' Interest in the Joint Venture [Abstract] |  |  |  |  |  |  |
Equity interest acquired (in hundredths) |  |  |  |  |  | 50.00%cytx_BusinessAcquisitionPercentageOfEquityInterestsAcquired / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |
Acquisition agreement date |  |  |  |  |  | May 27, 2013 |
Remeasurement gain |  | 4,892,000 us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |  |  |  |  |
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%cytx_GrossSalesReceipts / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |
Limit for cash through strategic or financing arrangements |  |  |  |  |  | 35,000,000 cytx_LimitForCashThroughStrategicOrFinancingArrangements / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |
Required payment for acquisition |  |  |  |  |  | 4,500,000 cytx_RequiredPaymentForAcquisition / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |
Inputs used in valuation of acquired intangible assets [Abstract] |  |  |  |  |  |  |
Estimated fair value |  |  |  |  |  |  | 9,394,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember
Fair value of purchase consideration |  |  |  |  |  | 4,928,000 cytx_FairValueOfPurchaseConsideration / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |
Unamortized discount resulting from fair value calculation of purchase obligations |  |  |  |  |  | 1,072,000 cytx_UnamortizedDiscountResultingFromFairValueCalculationOfPurchaseObligations / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |
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 us-gaap_EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |
Increased obligation under alternative payment option |  |  |  |  | 1,500,000 cytx_IncreaseInSettlementObligation / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |  |
Total payments to be made |  |  |  |  | 6,000,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |  |
Additional interest expense of quarterly reassessment |  | 579,000,000 cytx_AdditionalInterestExpense / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |  |  |  |  |
Unrecognized future discount amount |  | 289,000,000 cytx_RemainingUnrecognizedFutureDiscount / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember |  |  |  |  |
Fair value of the assets acquired and liabilities assumed at the date of acquisition [Abstract] |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  | 236,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember
Property and equipment |  |  |  |  |  |  | 260,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember
Intangible assets |  |  |  |  |  |  | 9,394,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember
Total assets acquired |  |  |  |  |  |  | 9,890,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember
Accrued and other current liabilities |  |  |  |  |  |  | (33,000)cytx_BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccruedAndOtherLiabilities / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember
Total fair value of the Joint Venture |  |  |  |  |  |  | 9,857,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember
Acquired Olympus Ownership [Member] | Minimum [Member] |  |  |  |  |  |  |
Acquisition of Olympus' Interest in the Joint Venture [Abstract] |  |  |  |  |  |  |
Payment obligation under termination agreement |  |  |  |  |  | 4,500,000 cytx_PaymentObligationUnderTerminationAgreement / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
Payment installment period |  |  |  |  |  | 1 year |
Inputs used in valuation of acquired intangible assets [Abstract] |  |  |  |  |  |  |
Discount rate used to value intangible assets (in hundredths) |  |  |  |  |  | 9.75%us-gaap_FairValueInputsDiscountRate / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
Acquired Olympus Ownership [Member] | Maximum [Member] |  |  |  |  |  |  |
Acquisition of Olympus' Interest in the Joint Venture [Abstract] |  |  |  |  |  |  |
Payment obligation under termination agreement |  |  |  |  |  | 16,000,000 cytx_PaymentObligationUnderTerminationAgreement / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
Payment installment period |  |  |  |  |  | 6 years |
Inputs used in valuation of acquired intangible assets [Abstract] |  |  |  |  |  |  |
Discount rate used to value intangible assets (in hundredths) |  |  |  |  |  | 12.75%us-gaap_FairValueInputsDiscountRate / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
Acquired Olympus Ownership [Member] | Developed Technology [Member] |  |  |  |  |  |  |
Inputs used in valuation of acquired intangible assets [Abstract] |  |  |  |  |  |  |
Useful life (in years) |  | 7 years |  |  |  |  |
Estimated fair value |  | 9,394,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  |  |  |  |
Fair value of the assets acquired and liabilities assumed at the date of acquisition [Abstract] |  |  |  |  |  |  |
Intangible assets |  | $ 9,394,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = cytx_AcquiredOlympusOwnershipMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |  |  |  |  |

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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Cash outflow representing an adjustment to the purchase price of a previous acquisition. + References No definition available. + Details
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- Definition The net cash inflow or outflow associated with the aggregate amount of adjustment to the purchase price of a previous acquisition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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