Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.4
Fair Value Measurements (Reconciliation of the Beginning and Ending Liability Balance) (Details) - USD ($)
3 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Fair Value Measurements [Abstract]    
Beginning balance $ 4,182,000 $ 3,625,000
Change in fair value of derivative liabilities 604,000 394,000
Ending balance $ 4,786,000 $ 4,019,000