Property and Equipment - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 1,404	$ 1,325
Less: accumulated depreciation	(404)	(201)
Property, Plant and Equipment, Net, Total	1,000	1,124
Computers and Purchased Software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	345	281
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	461	449
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	595	595
Other
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 3	$ 0

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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