Significant Customers that Accounted for More than Ten Percentage of Total Product Revenue (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Etablissement Francais du Sang
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue	30.00%	20.00%	26.00%	18.00%
Grifols
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue		22.00%		20.00%
Bravo Pacific Limited
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue		11.00%
Advanced Technology Company KSC
Revenue, Major Customer [Line Items]
Percentage of revenue derived from significant customer from Company's total product revenue		10.00%