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Stock-based Compensation, Equity Grants, and Warrants - Fair Value Assumptions (Details) - Employee Stock Option
12 Months Ended
Sep. 30, 2016
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk free interest rate 1.01%
Contractual term 10 years
Dividend yield 0.00%
Expected lives 10 years
Expected volatility 106.00%
Fair value per option $ 2.55