Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Reconciliation of the Beginning and Ending Liability Balance) (Details)

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Fair Value Measurements (Reconciliation of the Beginning and Ending Liability Balance) (Details) - USD ($)
6 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Fair Value Measurements [Abstract]    
Beginning balance $ 2,426,000
Additions   3,319,000
Change in fair value of derivative liabilities 403,000 21,000
Ending balance $ 2,829,000 $ 3,340,000