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Summary of Significant Accounting Policies (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2017	Sep. 30, 2018 USD ($)	Sep. 30, 2018 USD ($) item	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Inventory valuation
Raw materials		$ 2,892,366	$ 2,892,366		$ 2,920,209
Work-in-process		817,051	817,051		794,756
Finished goods		570,691	570,691		464,689
Inventories		$ 4,280,108	4,280,108		4,179,654
Property and Equipment
Aircraft purchase			2,400,000
Long-Lived Assets
Impairment charges			$ 0		0	$ 0
Revenue Recognition
Minimum number of deliverable for allocating revenue to each deliverable | item			1
Customer Service Revenue
Customer Service Sales			$ 4,047,265		3,232,712	3,597,828
Customer Service Cost of Sales			1,724,167		1,520,146	1,271,022
Gross Profit			$ 2,323,098		$ 1,712,566	$ 2,326,806
Income taxes
U.S. Federal statutory tax rate (as a percent)	34.00%	21.00%	24.30%		34.00%	34.00%
Percentage of limitation on net operating losses		80.00%
Deferred income tax expense due to Tax Cuts and Jobs Act				$ 321,038
Property and equipment except manufacturing facility and the corporate airplane | Minimum
Property and Equipment
Estimated useful lives			3 years
Property and equipment except manufacturing facility and the corporate airplane | Maximum
Property and Equipment
Estimated useful lives			7 years
Corporate airplane and manufacturing facility | Minimum
Property and Equipment
Estimated useful lives			39 years
Corporate airplane and manufacturing facility | Maximum
Property and Equipment
Estimated useful lives			10 years

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