Summary of Significant Accounting Policies (Leases) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019
Lease descriptions
Option to extend the lease term		true
Option to terminate the lease		false
Lease option length in years	5 years	5 years
Lease cost
Operating and variable lease expenses	$ 600	$ 1,300
Rent expense	300		$ 1,000
Maturities of operating lease liabilities
2020	1,788	1,788
2021	1,830	1,830
2022	1,849	1,849
2023	1,730	1,730
2024	1,719	1,719
Thereafter	12,802	12,802
Total lease payments	21,718	21,718
Less imputed interest	(6,717)	(6,717)
Lease liability	15,001	15,001
Schedule of future minimum lease payments
2020	988	988
2021	839	839
2022	824	824
2023	853	853
2024	655	655
Thereafter	1,350	1,350
Total lease payments	$ 5,509	$ 5,509
Weighted average remaining lease term (years)	14 years 8 months 12 days	14 years 8 months 12 days
Weighted average discount rate	6.10%	6.10%