Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property and Equipment
Property and equipment, gross	$ 2,847	$ 2,176
Less accumulated depreciation and amortization	1,571	1,031
Property and equipment, net	1,276	1,145
Depreciation expense	547	319	$ 265
Computer equipment
Property and Equipment
Property and equipment, gross	278	256
Software
Property and Equipment
Property and equipment, gross	1,100	615
Furniture, fixtures and other
Property and Equipment
Property and equipment, gross	1,170	908
Leasehold improvements
Property and Equipment
Property and equipment, gross	299	298
Assets in Progress
Property and Equipment
Property and equipment, gross	$ 0	$ 99

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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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