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Agreement with Lorem Vascular (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2014 | Oct. 31, 2010
Partnership Agreement [Line Items] |  |  |
Equity purchase price (in dollars per share) |  | $ 0.49 us-gaap_SharePrice | $ 4.50 us-gaap_SharePrice
Lorem Vascular [Member] | Exclusive License [Member] |  |  |
Partnership Agreement [Line Items] |  |  |
Total commitment | $ 500 us-gaap_LongTermPurchaseCommitmentAmount / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_PartnershipAgreementAxis = cytx_ExclusiveLicenseMember |  |
Period of exclusive license | 30 years |  |
Lorem Vascular [Member] | Equity Purchases [Member] |  |  |
Partnership Agreement [Line Items] |  |  |
Total commitment | 24 us-gaap_LongTermPurchaseCommitmentAmount / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_PartnershipAgreementAxis = cytx_EquityPurchasesMember |  |
Shares of unregistered stock purchased (in shares) | 8.0 cytx_UnregisteredStockPurchased / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_PartnershipAgreementAxis = cytx_EquityPurchasesMember |  |
Equity purchase price (in dollars per share) | $ 3.00 us-gaap_SharePrice / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_PartnershipAgreementAxis = cytx_EquityPurchasesMember |  |
Number of installments in equity purchases | 2 cytx_NumberOfInstallmentsInEquityPurchases / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_PartnershipAgreementAxis = cytx_EquityPurchasesMember |  |
Lorem Vascular [Member] | Product Purchase Commitment [Member] |  |  |
Partnership Agreement [Line Items] |  |  |
Total commitment | 7 us-gaap_LongTermPurchaseCommitmentAmount / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_PartnershipAgreementAxis = cytx_ProductPurchaseCommitmentMember |  |
First purchase commitment | 2 cytx_FirstPurchaseCommitment / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_PartnershipAgreementAxis = cytx_ProductPurchaseCommitmentMember |  |
Second purchase commitment | $ 5 cytx_SecondPurchaseCommitment / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_PartnershipAgreementAxis = cytx_ProductPurchaseCommitmentMember |  |

X
- Definition Represents the first purchase commitment. + References No definition available. + Details
Name: | cytx_FirstPurchaseCommitment
Namespace Prefix: | cytx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the number of installments in equity purchases. + References No definition available. + Details
Name: | cytx_NumberOfInstallmentsInEquityPurchases
Namespace Prefix: | cytx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | cytx_PartnershipAgreementLineItems
Namespace Prefix: | cytx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Refers to period of license granted. + References No definition available. + Details
Name: | cytx_PeriodOfExclusiveLicense
Namespace Prefix: | cytx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the second purchase commitment. + References No definition available. + Details
Name: | cytx_SecondPurchaseCommitment
Namespace Prefix: | cytx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of shares of the Company's unregistered shares purchased. + References No definition available. + Details
Name: | cytx_UnregisteredStockPurchased
Namespace Prefix: | cytx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
Name: | us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=cytx_LoremVascularMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |