Summary of Business and Significant Accounting Principles (Tables)

12 Months Ended

Dec. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of estimated useful lives of property, plant and equipment

Depreciation is calculated using the straight-line method, based upon the following estimated useful lives:

Buildings	15 - 39 years
Software	3 - 6 years
Equipment	5 years
Vehicles and prototypes	3 - 5 years

Schedule of Warranty Accrual

Activity for the Company's warranty accrual is as follows:

	December 31,
	2019		2018
Balance at beginning of year	$	7,058,769	$	142,560
Accrual for warranty	92,191		7,981,413
Warranty costs incurred	(1,149,096)		(1,065,204)
Balance at end of year	$	6,001,864	$	7,058,769

Schedule of Earnings Per Share, Basic and Diluted

The following table shows the computation of basic and diluted earnings per share:

	Years Ended December 31,
	2019		2018
Net loss	$	(37,162,827)	$	(36,502,316)
Deemed dividends	86,207		765,179
Net loss attributable to common stockholders	$	(37,249,034)	$	(37,267,495)
Basic weighted average shares outstanding	64,314,756		50,377,909
Dilutive effect of options and warrants	—		—
Dilutive effect of Convertible Note	—		—
Diluted weighted average shares outstanding	64,314,756		50,377,909
Anti-dilutive options and warrants excluded from diluted average shares outstanding	36,021,502		21,686,465