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Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Oct. 31, 2010	May 14, 2009	Mar. 10, 2009
Cash and Cash Equivalents [Abstract]
Cash and cash equivalents investments with original maturities	$ 6,145,000				$ 30,646,000				$ 6,145,000	$ 30,646,000
Line of Credit Facility [Line Items]
Letter of credit amount required by lease agreement	25,000,000								25,000,000
Goodwill and Intangibles [Abstract]
Other intangibles, net, Beginning balance				192,000				413,000	192,000	413,000
Other intangibles, net, Amortization									(192,000)	(221,000)
Other intangibles, net, Ending balance	0				192,000				0	192,000	413,000
Goodwill, net, Beginning balance				3,922,000				3,922,000	3,922,000	3,922,000
Goodwill, net, Increase (Decrease)									0	0
Goodwill, net Ending balance	3,922,000				3,922,000				3,922,000	3,922,000	3,922,000
Total goodwill and other intangibles, net	3,922,000				4,114,000				3,922,000	4,114,000
Cumulative amortization of other intangible assets	2,216,000				2,024,000				2,216,000	2,024,000
Class of Warrant or Right [Line Items]
Change in fair value of warrants									(209,000)	(4,360,000)	(1,285,000)
Common stock market price (in dollars per share)												$ 4.50	$ 2.28	$ 2.10
Revenue Recognition [Abstract]
Period of services provided subsequent to date of sale									1 year
Concentration of Significant Customers [Line Items]
Number of distributor									1
Concentration risk percentage (in hundredths)									100.00%	100.00%	100.00%
Research and Development Arrangements [Line Items]
Deferred revenues, related party	638,000				3,520,000				638,000	3,520,000
Costs associated with the development device									13,628,000	10,904,000	9,687,000
Qualifying expenses entitlement under BARDA contract									4,700,000
Qualifying expenditures related to research									331,000	0	0
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,967,000	1,314,000	1,947,000	1,481,000	2,076,000	2,134,000	2,411,000	1,362,000	8,709,000	7,983,000	8,254,000
Concentration risk percentage (in hundredths)									100.00%	100.00%	100.00%
Loss Per Share [Abstract]
Dilutive common shares excluded from the calculations of diluted loss per share (in shares)									17,426,976	19,476,425	18,926,093
North America [Member]
Concentration of Significant Customers [Line Items]
Concentration risk percentage (in hundredths)									13.00%	17.00%	21.00%
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									1,143,000	1,347,000	1,784,000
Concentration risk percentage (in hundredths)									13.00%	17.00%	21.00%
Japan [Member]
Concentration of Significant Customers [Line Items]
Concentration risk percentage (in hundredths)									50.00%	40.00%	52.00%
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									4,352,000	3,202,000	4,257,000
Concentration risk percentage (in hundredths)									50.00%	40.00%	52.00%
Europe [Member]
Concentration of Significant Customers [Line Items]
Concentration risk percentage (in hundredths)									23.00%	25.00%	20.00%
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									2,004,000	1,973,000	1,640,000
Concentration risk percentage (in hundredths)									23.00%	25.00%	20.00%
Other countries [Member]
Concentration of Significant Customers [Line Items]
Concentration risk percentage (in hundredths)									14.00%	18.00%	7.00%
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									1,210,000	1,461,000	573,000
Concentration risk percentage (in hundredths)									14.00%	18.00%	7.00%
Olympus and Olympus-Cytori [Member]
Research and Development Arrangements [Line Items]
Deferred revenues, related party	28,311,000								28,311,000
Deferred revenue, related party, revenue recognized									2,882,000	1,992,000	2,122,000
Cumulative deferred revenue recognized to date	27,673,000								27,673,000
Celution System Platform [Member]
Research and Development Arrangements [Line Items]
Costs associated with the development device		106,000,000							219,000	396,000	2,221,000
Revenue Recognized [Member]
Concentration of Significant Customers [Line Items]
Number of customers									1	1
Concentration risk percentage (in hundredths)									12.00%	14.00%
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage (in hundredths)									12.00%	14.00%
Geographic Concentration Risk [Member]
Concentration of Significant Customers [Line Items]
Concentration risk percentage (in hundredths)									71.00%	67.00%
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage (in hundredths)									71.00%	67.00%
Credit Concentration Risk [Member]
Concentration of Significant Customers [Line Items]
Number of customers									2	2
Concentration risk percentage (in hundredths)									39.00%	27.00%
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage (in hundredths)									39.00%	27.00%
Warrant [Member]
Class of Warrant or Right [Line Items]
Fair value of warrants	418,000								418,000
Change in fair value of warrants									209,000	4,360,000	1,285,000
Expected term									7 months 10 days	1 year 7 months 10 days
Common stock market price (in dollars per share)	$ 2.80				$ 2.20				$ 2.80	$ 2.20
Risk free interest rate (in hundredths)									0.11%	0.19%
Expected volatility (in hundredths)									73.88%	69.98%
Resulting fair value (per warrant) (in dollars per share)	$ 0.20				$ 0.32				$ 0.20	$ 0.32
Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful lives of the assets									3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful lives of the assets									5 years
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Letter of credit amount required by lease agreement	350,000								350,000
Restricted cash required to maintained under Lease agreement	$ 350,000								$ 350,000

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Change in fair value of warrants for the period which are included in the statement of income (or changes in net assets) in operating expenses; the fair value of which was or is measured on a recurring basis using model-derived valuations in which one or more significant inputs are unobservable in active markets (Level 3).

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