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Significant Customers that Accounted for More than Ten Percentage of Total Product Revenue (Detail) | 3 Months Ended | 6 Months Ended
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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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- Details
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