Summary of Significant Accounting Policies - Schedule of property, plant, and equipment (Details)	12 Months Ended
	Dec. 31, 2019
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Manufacturing equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Manufacturing equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Research and development equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Research and development equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Software
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Vehicles
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years