Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Subparagraph (SX 210.5-02.18)

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Segmented Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 item	Dec. 31, 2012	Dec. 31, 2011
Segmented Information
Number of operating segment	1
Segmented information
Assets	$ 240,693	$ 208,763
Revenues	72,524	49,216	56,842
Inactivated hepatitis vaccines
Segmented information
Revenues	47,202	39,951	26,939
Influenza vaccines
Segmented information
Revenues	12,156	9,191	8,113
H5N1
Segmented information
Revenues	10,736		7,782
H1N1
Segmented information
Revenues			14,008
Mumps
Segmented information
Revenues	1,680	24
Rabend
Segmented information
Revenues	750	50
Mainland China
Segmented information
Total long-lived assets	79,683	81,233
Assets	199,703	164,174
Revenues	71,397	48,199	56,407
Hong Kong
Segmented information
Assets	40,990	44,589
Foreign countries
Segmented information
Revenues	$ 1,127	$ 1,017	$ 435