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Long-term Obligations (Details) (USD $)	12 Months Ended				0 Months Ended
	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012	Jun. 28, 2013
Debt Instrument [Line Items]
Warrant exercise price (in dollars per share)	$ 25.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Repayment of long term debt	$ 1,962,000us-gaap_RepaymentsOfLongTermDebt		$ 22,304,000us-gaap_RepaymentsOfLongTermDebt	$ 2,692,000us-gaap_RepaymentsOfLongTermDebt
Net proceeds of the Term Loan, after payment of lender fees and expenses	0us-gaap_ProceedsFromIssuanceOfLongTermDebt		27,000,000us-gaap_ProceedsFromIssuanceOfLongTermDebt	0us-gaap_ProceedsFromIssuanceOfLongTermDebt
Loss on debt extinguishment	0us-gaap_ExtinguishmentOfDebtGainLossNetOfTax		708,000us-gaap_ExtinguishmentOfDebtGainLossNetOfTax	0us-gaap_ExtinguishmentOfDebtGainLossNetOfTax
Unamortized debt discount	1,459,000us-gaap_DebtInstrumentUnamortizedDiscount
Additional details relating term loan that is outstanding [Abstract]
Current Monthly Payment	1,000,000us-gaap_DebtInstrumentPeriodicPayment
Future contractual principal and final fee payments on all debt and lease obligations [Abstract]
2015			7,462,000us-gaap_ContractualObligationDueInNextTwelveMonths
2016			10,805,000us-gaap_ContractualObligationDueInSecondYear
2017			8,596,000us-gaap_ContractualObligationDueInThirdYear
Contractual principal and final fee payments, Total	26,863,000us-gaap_ContractualObligation		26,863,000us-gaap_ContractualObligation
Reconciliation of Face Value to Book Value [Abstract]
Contractual principal and final fee payments, Total	26,863,000us-gaap_ContractualObligation		26,863,000us-gaap_ContractualObligation
Less: Debt discount	(1,459,000)us-gaap_DebtInstrumentUnamortizedDiscount
Total:	25,404,000us-gaap_DebtLongtermAndShorttermCombinedAmount
Less: Current portion	(7,363,000)us-gaap_LongTermDebtCurrent		(3,191,000)us-gaap_LongTermDebtCurrent
Long-term obligation	18,041,000us-gaap_LongTermDebtAndCapitalLeaseObligations		23,100,000us-gaap_LongTermDebtAndCapitalLeaseObligations
Interest expense	4,371,000us-gaap_InterestExpense		3,396,000us-gaap_InterestExpense	3,386,000us-gaap_InterestExpense
Non-cash amortization	1,220,000us-gaap_AmortizationOfDebtDiscountPremium		893,000us-gaap_AmortizationOfDebtDiscountPremium	930,000us-gaap_AmortizationOfDebtDiscountPremium
Term Loan [Member]
Debt Instrument [Line Items]
Maturity date					Jul. 01, 2017
Fees amount associated with loan					1,795,000us-gaap_DebtInstrumentFeeAmount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Date from which warrants are exercisable					Jun. 28, 2013
Warrants issued to lenders (in shares)					596,553cytx_WarrantsIssuedInConjunctionWithIssuanceOfDebt / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Warrant exercise price (in dollars per share)					$ 2.26us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Warrant expiration date					Jun. 28, 2020
Repayment of long term debt					18,866,000us-gaap_RepaymentsOfLongTermDebt / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Term Loan remaining balance at date of Amendment	25,038,125us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember				17,325,000us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Accrued but unpaid interest					119,000us-gaap_DebtInstrumentIncreaseAccruedInterest / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Final payment fee					1,078,000cytx_FinalPaymentFee / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Prepayment fee					312,000cytx_PrepaymentFee / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Net proceeds of the Term Loan, after payment of lender fees and expenses					7,800,000us-gaap_ProceedsFromIssuanceOfLongTermDebt / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Loss on debt extinguishment					708,000us-gaap_ExtinguishmentOfDebtGainLossNetOfTax / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Unamortized debt discount					949,000us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Effective interest rate (in hundredths)					13.86%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Outstanding warrants issued and re-priced (in shares)					596,553cytx_OutstandingWarrantsIssuedAndRePricedShares / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Additional details relating term loan that is outstanding [Abstract]
Origination Date	Jun. 30, 2013				Jun. 28, 2013
Original Loan Amount	27,000,000us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Interest Rate (in hundredths)	9.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Current Monthly Payment	203,434us-gaap_DebtInstrumentPeriodicPayment / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember	[1]
Original Term	48 months
Remaining Principal (Face Value)	25,038,125us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember				17,325,000us-gaap_DebtInstrumentCarryingAmount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Reconciliation of Face Value to Book Value [Abstract]
Less: Debt discount					(949,000)us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember
Term Loan [Member] | Final Payment [Member]
Debt Instrument [Line Items]
Fees amount associated with loan					$ 1,942,000us-gaap_DebtInstrumentFeeAmount / us-gaap_DebtInstrumentAxis = cytx_AmendedTermLoanMember / us-gaap_StatementScenarioAxis = cytx_FinalPaymentMember
[1] Current monthly payment is inclusive of interest only

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