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Significant Customers that Accounted for More than Ten Percentage of Total Product Revenue (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Etablissement Francais du Sang
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue	18.00%	19.00%	17.00%	24.00%
Movaco, S.A.
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue	14.00%	21.00%	15.00%	19.00%
Bravo Pacific Limited
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue	14.00%
AUM+ LTD
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue	10.00%	13.00%
Delrus Inc.
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue			11.00%	13.00%

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- Definition

Concentration Risk Percentage Of Revenues By Single Customer

+ References

No definition available.

+ Details

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- Details

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