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Component of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Property Plant And Equipment [Line Items]
Manufacturing equipment	8,171us-gaap_MachineryAndEquipmentGross	$ 8,968us-gaap_MachineryAndEquipmentGross
Lab equipment	6,473dvax_LaboratoryEquipmentGross	7,227dvax_LaboratoryEquipmentGross
Computer equipment	2,196dvax_ComputerEquipmentGross	1,962dvax_ComputerEquipmentGross
Furniture and fixtures	1,070us-gaap_FurnitureAndFixturesGross	1,056us-gaap_FurnitureAndFixturesGross
Leasehold improvements	5,690us-gaap_LeaseholdImprovementsGross	6,048us-gaap_LeaseholdImprovementsGross
Assets in progress	935us-gaap_PropertyPlantAndEquipmentOther	762us-gaap_PropertyPlantAndEquipmentOther
Property, Plant and Equipment, Gross	24,535us-gaap_PropertyPlantAndEquipmentGross	26,023us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation and amortization	(16,611)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	(17,317)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Total	7,924us-gaap_PropertyPlantAndEquipmentNet	$ 8,706us-gaap_PropertyPlantAndEquipmentNet
Manufacturing Equipment | Minimum
Property Plant And Equipment [Line Items]
Estimated Useful Lives (In years)	5 years
Manufacturing Equipment | Maximum
Property Plant And Equipment [Line Items]
Estimated Useful Lives (In years)	14 years
Lab Equipment | Minimum
Property Plant And Equipment [Line Items]
Estimated Useful Lives (In years)	5 years
Lab Equipment | Maximum
Property Plant And Equipment [Line Items]
Estimated Useful Lives (In years)	13 years
Computer Equipment
Property Plant And Equipment [Line Items]
Estimated Useful Lives (In years)	3 years
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Estimated Useful Lives (In years)	3 years
Leasehold Improvements | Minimum
Property Plant And Equipment [Line Items]
Estimated Useful Lives (In years)	5 years
Leasehold Improvements | Maximum
Property Plant And Equipment [Line Items]
Estimated Useful Lives (In years)	7 years

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Computer equipment, Gross.

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Laboratory Equipment Gross

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

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- Definition

Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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-Paragraph 1

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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