Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies (Details)

v3.21.1
Organization and Summary of Significant Accounting Policies (Details)
12 Months Ended
Dec. 31, 2020
Shop Equipment And Machinery [Member]  
Estimated life 5 years
Leasehold Improvements [Member]  
Estimated useful life Shorter of the lease term or estimated useful life
Office Equipment [Member]  
Estimated life 5 years
Software [Member]  
Estimated life 5 years
Minimum [Member] | Production Tooling, Jigs, Fixtures [Member]  
Estimated life 3 years
Minimum [Member] | Vehicles [Member]  
Estimated life 3 years
Maximum [Member] | Production Tooling, Jigs, Fixtures [Member]  
Estimated life 5 years
Maximum [Member] | Vehicles [Member]  
Estimated life 5 years