XML 47 R21.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Therapeutic Tax Credit | 12 Months Ended
--- | ---
Dec. 31, 2011
Therapeutic Tax Credit | ## Note 13 — Therapeutic Tax Credit In 2010, the Company submitted applications for qualifying therapeutic discovery project credits under §48D of the Internal Revenue Code, as amended (the “Code”), as added to the Code by section 9023(a) of the Patient Protection and Affordable Care Act of 2010, and was awarded grants totaling $1.0 million, of which $0.2 million was refunded due to a shortfall in qualified expenses relating to one of its applications.

X
- Definition Tax Disclosure [Text Block] + References No definition available. + Details
Name: | nvax_TaxDisclosureTextBlock
Namespace Prefix: | nvax_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration