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Summary of Significant Accounting Policies (Details)	3 Months Ended		9 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) segment customer item	Jun. 30, 2016 USD ($)
Number of business segments
Number of business segments in which the entity operates | segment			1
Depreciation	$ 111,000	$ 117,000	$ 330,000	$ 344,000
Long-Lived Assets
Impairment charges			$ 0	0
Revenue Recognition
Minimum number of deliverable for allocating revenue to each deliverable | item			1
Number of customers | customer			2
Net sales and net accounts receivables reflect reductions			$ (556,009)
Customer Service Revenue
Customer Service Sales	827,046	1,023,302	2,228,934	2,702,956
Customer Service Cost of Sales	367,697	357,390	1,001,046	935,995
Gross Profit	$ 459,349	$ 665,912	$ 1,227,888	1,766,961
Engineering Development
Percentage of employees who were engineers engaged in various engineering development projects			34.00%
Warranty
Length of warranty period			24 months
Property and equipment except corporate airplane and manufacturing facility | Minimum
Number of business segments
Estimated useful lives			3 years
Property and equipment except corporate airplane and manufacturing facility | 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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