Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - JD Alexander (Details)

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Related Party Transactions - JD Alexander (Details) - JD Alexander
3 Months Ended 12 Months Ended
Nov. 06, 2013
USD ($)
installment
Sep. 30, 2015
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Related Party Transaction [Line Items]        
Consulting services and covenant period 2 years      
Payments for services and covenants $ 2,000,000      
Number of monthly installments | installment 24      
Expense under consulting and non-compete agreement   $ 1,000,000 $ 0 $ 167,000