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Other Financial Information - Property and equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 3,897	$ 3,775
Less: accumulated depreciation and amortization	(2,521)	(2,395)
Property and equipment, net	1,376	1,380
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	32	25
Laboratory equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	2,501	2,228
Computer equipment and software
Property, Plant and Equipment [Line Items]
Total property and equipment	891	851
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	424	424
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 49	$ 247

X

- Definition

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

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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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