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Significant Accounting Policies - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property Plant And Equipment [Line Items]
Property and equipment	$ 630	$ 190
Less accumulated depreciation	(76)	(17)
Property and equipment, net	554	173
Leasehold Improvement
Property Plant And Equipment [Line Items]
Property and equipment	182	173
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment	185
Equipment
Property Plant And Equipment [Line Items]
Property and equipment	219
Computer Hardware and Software
Property Plant And Equipment [Line Items]
Property and equipment	$ 44	$ 17

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- 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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