Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property and Equipment, Net
Total property and equipment	$ 8,781	$ 8,723
Less: Accumulated depreciation	(4,730)	(2,325)
Total property and equipment, net	4,051	6,398
Depreciation expense	2,405	2,068	$ 286
Furniture, fixtures, and vehicles
Property and Equipment, Net
Total property and equipment	62	47
Computer hardware and software
Property and Equipment, Net
Total property and equipment	349	344
Leasehold improvements
Property and Equipment, Net
Total property and equipment	3,667	3,627
Lab equipment
Property and Equipment, Net
Total property and equipment	4,602	4,685
Construction in progress
Property and Equipment, Net
Total property and equipment	$ 101	$ 20

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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