Summary of Significant Accounting Policies (Leases) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 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	$ 400	$ 700
Rent expense	300		$ 600
Maturities of operating lease liabilities
2020	1,832	1,832
2021	1,817	1,817
2022	1,835	1,835
2023	1,770	1,770
2024	1,708	1,708
Thereafter	13,238	13,238
Total lease payments	22,200	22,200
Less imputed interest	(6,927)	(6,927)
Lease liability	15,273	15,273
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%