Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Principles (Tables)

v3.3.1.900
Summary of Significant Accounting Principles (Tables)
12 Months Ended
Dec. 31, 2015
Summary of Significant Accounting Principles [Abstract]  
Schedule of estimated useful lives

Buildings:  15 - 30 years

Leasehold improvements:  7 years

Software:  3 - 6 years

Equipment:  5 years

Vehicles and prototypes:  3 - 5 years

Income taxes
Approximate net 
operating loss 
($ millions)
    Carryover to be used
against taxable 
income generated 
through year
 
             
  3.6       2030  
  6.7       2031  
  3.9       2032  
  4.7       2033  
  6.1       2034  
  9.0       2035