License Agreement	6 Months Ended
Jun. 30, 2011
License Agreement	Note 7 – License Agreement In February 2011, the Company entered into a License Agreement with LG Life Sciences, Ltd. (“LG Life Sciences”) to develop, manufacture and commercialize influenza vaccines using the Company’s proprietary VLP technology exclusively in South Korea and non-exclusively in certain other emerging countries. The term of the License Agreement is expected to terminate in 2027. Payments to the Company under the License Agreement include an upfront payment, milestone payments, reimbursements of certain development and product costs and royalty payments. It was determined that the upfront payment was not substantive based on the accounting guidance of ASU 2010-17 and is expected to be earned over the research and development period of the agreement. Payments related to milestones deemed substantive under ASU 2010-17 will be recognized upon achievement of such events. Payments for milestones not deemed substantive will be recognized over the remaining term of the research and development period upon achievement of such milestone.

Note 7 – License Agreement

In February 2011, the Company entered into a License Agreement with LG Life Sciences, Ltd. (“LG Life Sciences”) to develop, manufacture and commercialize influenza vaccines using the Company’s proprietary VLP technology exclusively in South Korea and non-exclusively in certain other emerging countries. The term of the License Agreement is expected to terminate in 2027. Payments to the Company under the License Agreement include an upfront payment, milestone payments, reimbursements of certain development and product costs and royalty payments.

It was determined that the upfront payment was not substantive based on the accounting guidance of ASU 2010-17 and is expected to be earned over the research and development period of the agreement. Payments related to milestones deemed substantive under ASU 2010-17 will be recognized upon achievement of such events. Payments for milestones not deemed substantive will be recognized over the remaining term of the research and development period upon achievement of such milestone.