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Stockholders' Equity (Details) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended			0 Months Ended			1 Months Ended
	Mar. 13, 2010	Oct. 31, 2010	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 13, 2010	Apr. 09, 2012	Jul. 11, 2011 Closing	Dec. 19, 2012	Feb. 28, 2013	Apr. 30, 2012	Sep. 30, 2014
Preferred Stock [Abstract]
Preferred stock, shares authorized (in shares)			5,000,000us-gaap_PreferredStockSharesAuthorized	5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, par value (in dollars per share)			$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare	$ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares issued (in shares)			13,500us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding (in shares)			5,311us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Stock Issuance [Abstract]
Proceeds from private placement of stock		$ 20,700,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement
Common stock issued (in shares)		4,600,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
Common stock at a purchase price (in dollars per unit)		$ 4.50us-gaap_SharePrice	$ 0.49us-gaap_SharePrice
Sale of stock, price per share (in dollars per share)		$ 4.23us-gaap_SaleOfStockPricePerShare
Deferred revenues			112,000us-gaap_DeferredRevenue	212,000us-gaap_DeferredRevenue						2,379,000us-gaap_DeferredRevenue
Expected expiration period for recognition of deferred amount	2 years
Common stock, shares issued (in shares)			99,348,377us-gaap_CommonStockSharesIssued	71,305,375us-gaap_CommonStockSharesIssued
Offering price per share (in dollars per share)		$ 4.23us-gaap_SaleOfStockPricePerShare
Proceeds from sale of common stock			19,001,000us-gaap_ProceedsFromIssuanceOfCommonStock	18,000,000us-gaap_ProceedsFromIssuanceOfCommonStock	24,953,000us-gaap_ProceedsFromIssuanceOfCommonStock
Warrant exercise price (in dollars per share)			$ 25.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Dividends Payable			1,200,000us-gaap_DividendsPayableCurrentAndNoncurrent
Shares with reduction in exercise price (in shares)			3,384,601cytx_SharesWithReductionInExercisePrice
Subsequent Event [Member]
Stock Issuance [Abstract]
Dividends Payable			600,000us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Astellas Pharma Inc. [Member]
Stock Issuance [Abstract]
Proceeds from private placement of stock						10,000,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement / dei_LegalEntityAxis = us-gaap_PrivatePlacementMember
Common stock issued (in shares)						1,428,571us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = us-gaap_PrivatePlacementMember
Sale of stock, price per share (in dollars per share)						$ 7.00us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = us-gaap_PrivatePlacementMember
Deferred revenues						2,526,000us-gaap_DeferredRevenue / dei_LegalEntityAxis = us-gaap_PrivatePlacementMember
Offering price per share (in dollars per share)						$ 7.00us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = us-gaap_PrivatePlacementMember
Seaside 88, LP [Member]
Stock Issuance [Abstract]
Proceeds from private placement of stock								6,000,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Common stock issued (in shares)							5,826,262us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember	1,326,262us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Sale of stock, price per share (in dollars per share)								$ 4.52us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Common stock, shares issued (in shares)							5,826,262us-gaap_CommonStockSharesIssued / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember	6,326,262us-gaap_CommonStockSharesIssued / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Number of closings								20cytx_NumberOfClosings / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Offering price per share (in dollars per share)								$ 4.52us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Purchase price of common stock, percent (in hundredths)								88.00%cytx_PurchasePriceOfCommonStockPercent / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Trading period								10 days
Proceeds from sale of common stock							18,233,000us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember	6,000,000us-gaap_ProceedsFromIssuanceOfCommonStock / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Number of shares terminated and not sold											(500,000)cytx_NumberOfSharesTerminatedAndNotSold / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember
Seaside 88, LP [Member] | Initial Closing Period [Member]
Stock Issuance [Abstract]
Common stock, shares issued (in shares)								1,326,262us-gaap_CommonStockSharesIssued / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember / cytx_StockIssuancePeriodAxis = cytx_InitialClosingPeriodMember
Purchase period of common stock								30 days
Seaside 88, LP [Member] | Every Two Weeks [Member]
Stock Issuance [Abstract]
Common stock, shares issued (in shares)								250,000us-gaap_CommonStockSharesIssued / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember / cytx_StockIssuancePeriodAxis = cytx_EveryTwoWeeksMember
Purchase period of common stock								14 days
Seaside 88, LP [Member] | Ten Day Trading Period [Member]
Stock Issuance [Abstract]
Purchase price of common stock, percent (in hundredths)								90.25%cytx_PurchasePriceOfCommonStockPercent / dei_LegalEntityAxis = cytx_PrivatePlacementTwoMember / cytx_StockIssuancePeriodAxis = cytx_TenDayTradingPeriodMember
Lazard Capital Markets, LLC [Member]
Stock Issuance [Abstract]
Proceeds from private placement of stock				3,000,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement / dei_LegalEntityAxis = cytx_PrivatePlacementThreeMember					20,007,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement / dei_LegalEntityAxis = cytx_PrivatePlacementThreeMember
Common stock issued (in shares)				7,020,000us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = cytx_PrivatePlacementThreeMember					1,053,000us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = cytx_PrivatePlacementThreeMember
Additional shares of common stock (in shares)				1,053,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / dei_LegalEntityAxis = cytx_PrivatePlacementThreeMember
Common stock at a purchase price (in dollars per unit)				$ 2.85us-gaap_SharePrice / dei_LegalEntityAxis = cytx_PrivatePlacementThreeMember
Sale of stock, price per share (in dollars per share)				$ 2.69us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = cytx_PrivatePlacementThreeMember
Purchase period of common stock				30 days
Offering price per share (in dollars per share)				$ 2.69us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = cytx_PrivatePlacementThreeMember
Lorem Vascular [Member]
Stock Issuance [Abstract]
Proceeds from private placement of stock			15,000,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement / dei_LegalEntityAxis = cytx_LoremVascularMember
Common stock issued (in shares)			8,000,000us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = cytx_LoremVascularMember
Sale of stock, price per share (in dollars per share)			$ 3.00us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = cytx_LoremVascularMember
Receivables from sale of stock			9,000,000us-gaap_ProceedsFromSaleOfFinanceReceivables / dei_LegalEntityAxis = cytx_LoremVascularMember
Offering price per share (in dollars per share)			$ 3.00us-gaap_SaleOfStockPricePerShare / dei_LegalEntityAxis = cytx_LoremVascularMember
Lorem Vascular [Member] | First Closing of Stock sale [Member]
Stock Issuance [Abstract]
Proceeds from private placement of stock			12,000,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_StockIssuancePeriodAxis = cytx_FirstClosingOfStockSaleMember
Common stock issued (in shares)			4,000,000us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_StockIssuancePeriodAxis = cytx_FirstClosingOfStockSaleMember
Lorem Vascular [Member] | Second Closing of Stock sale [Member]
Stock Issuance [Abstract]
Proceeds from private placement of stock			$ 3,000,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_StockIssuancePeriodAxis = cytx_SecondClosingOfStockSaleMember
Common stock issued (in shares)			4,000,000us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = cytx_LoremVascularMember / cytx_StockIssuancePeriodAxis = cytx_SecondClosingOfStockSaleMember
Warrant liability [Member]
Stock Issuance [Abstract]
Warrant exercise price (in dollars per share)			$ 0.5771us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_StatementClassOfStockAxis = us-gaap_WarrantMember									$ 2.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_StatementClassOfStockAxis = us-gaap_WarrantMember

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For those investors participating in the October 2014 issuance of Series A 3.6% Convertible Preferred Stock, we agreed to reduce the exercise price of warrants, conditioned upon shareholder approval which was obtained in January 2015.

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