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Summary of Significant Accounting Policies (Details)	3 Months Ended		6 Months Ended
	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2018 USD ($) segment item	Mar. 31, 2017 USD ($)
Number of business segments
Number of business segments in which the entity operates | segment			1
Depreciation	$ 106,000	$ 111,000	$ 209,000	$ 219,000
Long-Lived Assets
Impairment charges			$ 0	0
Revenue Recognition
Minimum number of deliverable for allocating revenue to each deliverable | item			1
Engineering Development
Percentage of employees who were engineers engaged in various engineering development projects			28.00%
Warranty
Length of warranty period			24 months
Customer Service
Customer Service Revenue
Gross Profit	697,239	407,245	$ 1,222,729	768,538
Customer Service Sales	1,185,460	698,155	2,224,307	1,401,887
Customer Service Cost of Sales	$ 488,221	$ 290,910	$ 1,001,578	633,349
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
Building
Number of business segments
Estimated useful lives			39 years
Corporate airplane
Number of business segments
Depreciation			$ 0	$ 0

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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