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Related Party Transactions (Details) - USD ($)
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Shareholder    
Related Party Transactions    
Legal fees $ 121,000 $ 122,000
Individual married to a shareholder and a daughter of Company's Chairman and Chief Executive Officer    
Related Party Transactions    
Service fees $ 0 $ 22,000