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Summary of Significant Accounting Policies (Details)
3 Months Ended
Dec. 31, 2016
USD ($)
segment
item
Dec. 31, 2015
USD ($)
Number of business segments    
Number of business segments in which the entity operates | segment 1  
Depreciation $ 108,000 $ 114,000
Long-Lived Assets    
Impairment charges $ 0 0
Revenue Recognition    
Minimum number of deliverable for allocating revenue to each deliverable | item 1  
Returns and allowances $ (458,181)  
Customer Service Revenue    
Customer Service Sales 703,732 697,890
Customer Service Cost of Sales 342,439 283,239
Gross Profit $ 361,293 $ 414,651
Engineering Development    
Percentage of employees who were engineers engaged in various engineering development projects 35.00%  
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