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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Summary of Significant Accounting Policies (Details)		3 Months Ended		12 Months Ended
Summary of Significant Accounting Policies (Details)	Jan. 01, 2018	Dec. 31, 2018 USD ($) segment	Dec. 31, 2017 USD ($)	Sep. 30, 2018 USD ($)
Number of business segments
Number of business segments in which the entity operates \| segment		1
Long-Lived Assets
Impairment charges		$ 0	$ 0
Income Taxes
U.S. Federal statutory tax rate (as a percent)	21.00%		35.00%	24.50%
Net operating losses (as a percent)		80.00%
Engineering Development
Percentage of employees who were engineers engaged in various engineering development projects		23.00%
Warranty
Length of warranty period		24 months
Contract Balances
Balance at beginning of the period		$ 356,801
Balance at end of the period		166,517		$ 356,801
Revenue recognized included in the opening contract liabilities balance.		271,000
Customer Service Revenue
Customer Service Sales		3,977,650	$ 3,087,984
Customer Service Cost of Sales		1,811,847	1,593,268
Gross profit		2,165,803	1,494,716
Customer Service
Customer Service Revenue
Customer Service Sales		662,094	1,038,847
Customer Service Cost of Sales		325,152	513,357
Gross profit		$ 336,942	$ 525,490
Property and equipment except manufacturing facility and the corporate airplane \| Minimum
Number of business segments
Estimated useful lives		3 years
Property and equipment except manufacturing facility and the corporate airplane \| Maximum
Number of business segments
Estimated useful lives		7 years
Manufacturing facility
Number of business segments
Estimated useful lives		39 years
Corporate airplanes
Number of business segments
Estimated useful lives		10 years