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Segment, Customer and Geographic Information (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Movaco, S.A. [Member]
Customers that accounted for more than 10% of the Company's total product revenue
Company's total product revenue from significant customers	21.00%	27.00%	19.00%	27.00%
Etablissement Francais du Sang [Member]
Customers that accounted for more than 10% of the Company's total product revenue
Company's total product revenue from significant customers	19.00%	15.00%	24.00%	20.00%
AUM+ LTD [Member]
Customers that accounted for more than 10% of the Company's total product revenue
Company's total product revenue from significant customers	13.00%
Delrus Inc. [Member]
Customers that accounted for more than 10% of the Company's total product revenue
Company's total product revenue from significant customers			13.00%

X

- Details

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- Definition

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

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