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Revenue Recognition (Details) (USD $)	3 Months Ended				3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Mar. 31, 2013 Olympus and Olympus-Cytori [Member]	Mar. 31, 2013 BARDA Contract [Member]	Sep. 30, 2012 BARDA Contract [Member]	Mar. 31, 2013 Revenue Recognized [Member] Customer	Mar. 31, 2012 Revenue Recognized [Member] Customer	Mar. 31, 2013 Credit Concentration Risk [Member] Customer	Mar. 31, 2012 Credit Concentration Risk [Member] Customer	Mar. 31, 2013 North America [Member]	Mar. 31, 2012 North America [Member]	Mar. 31, 2013 Japan [Member]	Mar. 31, 2012 Japan [Member]	Mar. 31, 2013 Europe [Member]	Mar. 31, 2012 Europe [Member]	Mar. 31, 2013 Other countries [Member]	Mar. 31, 2012 Other countries [Member]
Revenue Recognition [Abstract]
Period of services provided subsequent to date of sale	1 year
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of customers							2	2	2	2
Product revenues	$ 1,392,000	$ 1,481,000									$ 295,000	$ 214,000	$ 699,000	$ 549,000	$ 333,000	$ 352,000	$ 65,000	$ 366,000
Concentration risk percentage (in hundredths)	100.00%	100.00%					42.00%	31.00%	62.00%	29.00%	21.00%	14.00%	50.00%	37.00%	24.00%	24.00%	5.00%	25.00%
Research and Development Arrangements [Line Items]
Deferred revenues, related party	0		638,000	28,311,000
Deferred revenue, related party, revenue recognized	638,000	0
Cumulative deferred revenue recognized to date				28,311,000
Costs associated with the development device	3,720,000	2,836,000				106,000,000
Research and development arrangement with federal government, customer funding to offset costs incurred					$ 4,700,000
Research and development arrangement, initial base period					2 years

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Amount of previously reported deferred or unearned revenue that has been recognized since the original deferral.

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Related parties deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Represents maximum period of web hosting, technical and maintenance services provided to the client subsequent to date of sale.

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Represents the initial base period over which revenues are expected to be recognized under a research and development arrangement with the Federal Government.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The amount of customer funding recorded as an offset to costs incurred for a fixed-price, best-efforts research and development cost-sharing arrangement with the Federal Government.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

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