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Stock-based Compensation - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - Share-based Payment Arrangement, Option
12 Months Ended
Sep. 30, 2019
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Estimated fair value of options at grant date $ 196,970
Average expected life (years) 6 years
Average expected volatile factor 29.00%
Average risk-free interest rate 2.80%
Average expected dividend yield 0.00%