Property and Equipment, Net (Details) - Schedule of property and equipment, net - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 21,120	$ 11,158
Less - accumulated depreciation	(11,324)	(8,872)
Property and equipment, net	9,796	2,286
Shop machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	11,556	9,961
Computers and electronics [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,454	575
Office furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	710	348
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,801
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,330
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,269	$ 274

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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