Annual report pursuant to Section 13 and 15(d)

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

v3.21.2
Fair Value Measurements (Reconciliation of the Beginning and Ending Liability Balance) (Details) - USD ($)
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Fair Value Measurements [Abstract]    
Beginning balance $ 4,182,000 $ 3,625,000
Change in fair value of derivative liabilities 3,669,000 557,000
Ending balance $ 7,851,000 $ 4,182,000